21491258256

素因数分解:

$2^4\times 3^6\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{523}}^1$

素因数の和:833

約数の個数: 280

約数和(自身を含む): 67609867136

約数和(自身を除く): 46118608880

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 208, 216, 234, 243, 271, 312, 324, 351, 432, 468, 486, 523, 542, 624, 648, 702, 729, 813, 936, 972, 1046, 1053, 1084, 1296, 1404, 1458, 1569, 1626, 1872, 1944, 2092, 2106, 2168, 2439, 2808, 2916, 3138, 3159, 3252, 3523, 3888, 4184, 4212, 4336, 4707, 4878, 5616, 5832, 6276, 6318, 6504, 6799, 7046, 7317, 8368, 8424, 9414, 9477, 9756, 10569, 11664, 12552, 12636, 13008, 13598, 14092, 14121, 14634, 16848, 18828, 18954, 19512, 20397, 21138, 21951, 25104, 25272, 27196, 28184, 28242, 29268, 31707, 37656, 37908, 39024, 40794, 42276, 42363, 43902, 50544, 54392, 56368, 56484, 58536, 61191, 63414, 65853, 75312, 75816, 81588, 84552, 84726, 87804, 95121, 108784, 112968, 117072, 122382, 126828, 127089, 131706, 141733, 151632, 163176, 169104, 169452, 175608, 183573, 190242, 197559, 225936, 244764, 253656, 254178, 263412, 283466, 285363, 326352, 338904, 351216, 367146, 380484, 381267, 395118, 425199, 489528, 507312, 508356, 526824, 550719, 566932, 570726, 677808, 734292, 760968, 762534, 790236, 850398, 856089, 979056, 1016712, 1053648, 1101438, 1133864, 1141452, 1275597, 1468584, 1521936, 1525068, 1580472, 1652157, 1700796, 1712178, 1842529, 2033424, 2202876, 2267728, 2282904, 2551194, 2568267, 2937168, 3050136, 3160944, 3304314, 3401592, 3424356, 3685058, 3826791, 4405752, 4565808, 4956471, 5102388, 5136534, 5527587, 6100272, 6608628, 6803184, 6848712, 7370116, 7653582, 8811504, 9912942, 10204776, 10273068, 11055174, 11480373, 13217256, 13697424, 14740232, 15307164, 16582761, 19825884, 20409552, 20546136, 22110348, 22960746, 26434512, 29480464, 30614328, 33165522, 34441119, 39651768, 41092272, 44220696, 45921492, 49748283, 61228656, 66331044, 68882238, 79303536, 88441392, 91842984, 99496566, 103323357, 132662088, 137764476, 149244849, 183685968, 198993132, 206646714, 265324176, 275528952, 298489698, 397986264, 413293428, 447734547, 551057904, 596979396, 795972528, 826586856, 895469094, 1193958792, 1343203641, 1653173712, 1790938188, 2387917584, 2686407282, 3581876376, 5372814564, 7163752752, 10745629128, 21491258256]

約数ペア:

[(1, 21491258256), (2, 10745629128), (3, 7163752752), (4, 5372814564), (6, 3581876376), (8, 2686407282), (9, 2387917584), (12, 1790938188), (13, 1653173712), (16, 1343203641), (18, 1193958792), (24, 895469094), (26, 826586856), (27, 795972528), (36, 596979396), (39, 551057904), (48, 447734547), (52, 413293428), (54, 397986264), (72, 298489698), (78, 275528952), (81, 265324176), (104, 206646714), (108, 198993132), (117, 183685968), (144, 149244849), (156, 137764476), (162, 132662088), (208, 103323357), (216, 99496566), (234, 91842984), (243, 88441392), (271, 79303536), (312, 68882238), (324, 66331044), (351, 61228656), (432, 49748283), (468, 45921492), (486, 44220696), (523, 41092272), (542, 39651768), (624, 34441119), (648, 33165522), (702, 30614328), (729, 29480464), (813, 26434512), (936, 22960746), (972, 22110348), (1046, 20546136), (1053, 20409552), (1084, 19825884), (1296, 16582761), (1404, 15307164), (1458, 14740232), (1569, 13697424), (1626, 13217256), (1872, 11480373), (1944, 11055174), (2092, 10273068), (2106, 10204776), (2168, 9912942), (2439, 8811504), (2808, 7653582), (2916, 7370116), (3138, 6848712), (3159, 6803184), (3252, 6608628), (3523, 6100272), (3888, 5527587), (4184, 5136534), (4212, 5102388), (4336, 4956471), (4707, 4565808), (4878, 4405752), (5616, 3826791), (5832, 3685058), (6276, 3424356), (6318, 3401592), (6504, 3304314), (6799, 3160944), (7046, 3050136), (7317, 2937168), (8368, 2568267), (8424, 2551194), (9414, 2282904), (9477, 2267728), (9756, 2202876), (10569, 2033424), (11664, 1842529), (12552, 1712178), (12636, 1700796), (13008, 1652157), (13598, 1580472), (14092, 1525068), (14121, 1521936), (14634, 1468584), (16848, 1275597), (18828, 1141452), (18954, 1133864), (19512, 1101438), (20397, 1053648), (21138, 1016712), (21951, 979056), (25104, 856089), (25272, 850398), (27196, 790236), (28184, 762534), (28242, 760968), (29268, 734292), (31707, 677808), (37656, 570726), (37908, 566932), (39024, 550719), (40794, 526824), (42276, 508356), (42363, 507312), (43902, 489528), (50544, 425199), (54392, 395118), (56368, 381267), (56484, 380484), (58536, 367146), (61191, 351216), (63414, 338904), (65853, 326352), (75312, 285363), (75816, 283466), (81588, 263412), (84552, 254178), (84726, 253656), (87804, 244764), (95121, 225936), (108784, 197559), (112968, 190242), (117072, 183573), (122382, 175608), (126828, 169452), (127089, 169104), (131706, 163176), (141733, 151632)]