21881496

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 69189120

約数和(自身を除く): 47307624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 43, 52, 56, 78, 84, 86, 91, 104, 129, 156, 168, 172, 182, 233, 258, 273, 301, 312, 344, 364, 466, 516, 546, 559, 602, 699, 728, 903, 932, 1032, 1092, 1118, 1204, 1398, 1631, 1677, 1806, 1864, 2184, 2236, 2408, 2796, 3029, 3262, 3354, 3612, 3913, 4472, 4893, 5592, 6058, 6524, 6708, 7224, 7826, 9087, 9786, 10019, 11739, 12116, 13048, 13416, 15652, 18174, 19572, 20038, 21203, 23478, 24232, 30057, 31304, 36348, 39144, 40076, 42406, 46956, 60114, 63609, 70133, 72696, 80152, 84812, 93912, 120228, 127218, 130247, 140266, 169624, 210399, 240456, 254436, 260494, 280532, 390741, 420798, 508872, 520988, 561064, 781482, 841596, 911729, 1041976, 1562964, 1683192, 1823458, 2735187, 3125928, 3646916, 5470374, 7293832, 10940748, 21881496]

約数ペア:

[(1, 21881496), (2, 10940748), (3, 7293832), (4, 5470374), (6, 3646916), (7, 3125928), (8, 2735187), (12, 1823458), (13, 1683192), (14, 1562964), (21, 1041976), (24, 911729), (26, 841596), (28, 781482), (39, 561064), (42, 520988), (43, 508872), (52, 420798), (56, 390741), (78, 280532), (84, 260494), (86, 254436), (91, 240456), (104, 210399), (129, 169624), (156, 140266), (168, 130247), (172, 127218), (182, 120228), (233, 93912), (258, 84812), (273, 80152), (301, 72696), (312, 70133), (344, 63609), (364, 60114), (466, 46956), (516, 42406), (546, 40076), (559, 39144), (602, 36348), (699, 31304), (728, 30057), (903, 24232), (932, 23478), (1032, 21203), (1092, 20038), (1118, 19572), (1204, 18174), (1398, 15652), (1631, 13416), (1677, 13048), (1806, 12116), (1864, 11739), (2184, 10019), (2236, 9786), (2408, 9087), (2796, 7826), (3029, 7224), (3262, 6708), (3354, 6524), (3612, 6058), (3913, 5592), (4472, 4893)]