21356244

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:127

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 49768236

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 41, 42, 52, 53, 54, 63, 78, 82, 84, 91, 106, 108, 117, 123, 126, 156, 159, 164, 182, 189, 212, 234, 246, 252, 273, 287, 318, 351, 364, 369, 371, 378, 468, 477, 492, 533, 546, 574, 636, 689, 702, 738, 742, 756, 819, 861, 954, 1066, 1092, 1107, 1113, 1148, 1378, 1404, 1431, 1476, 1484, 1599, 1638, 1722, 1908, 2067, 2132, 2173, 2214, 2226, 2457, 2583, 2756, 2862, 3198, 3276, 3339, 3444, 3731, 4134, 4346, 4428, 4452, 4797, 4823, 4914, 5166, 5724, 6201, 6396, 6519, 6678, 7462, 7749, 8268, 8692, 9594, 9646, 9828, 10017, 10332, 11193, 12402, 13038, 13356, 14391, 14469, 14924, 15211, 15498, 18603, 19188, 19292, 19557, 20034, 22386, 24804, 26076, 28249, 28782, 28938, 30422, 30996, 33579, 37206, 39114, 40068, 43407, 44772, 45633, 56498, 57564, 57876, 58671, 60844, 67158, 74412, 78228, 84747, 86814, 91266, 100737, 112996, 117342, 130221, 134316, 136899, 169494, 173628, 182532, 197743, 201474, 234684, 254241, 260442, 273798, 338988, 395486, 402948, 410697, 508482, 520884, 547596, 593229, 762723, 790972, 821394, 1016964, 1186458, 1525446, 1642788, 1779687, 2372916, 3050892, 3559374, 5339061, 7118748, 10678122, 21356244]

約数ペア:

[(1, 21356244), (2, 10678122), (3, 7118748), (4, 5339061), (6, 3559374), (7, 3050892), (9, 2372916), (12, 1779687), (13, 1642788), (14, 1525446), (18, 1186458), (21, 1016964), (26, 821394), (27, 790972), (28, 762723), (36, 593229), (39, 547596), (41, 520884), (42, 508482), (52, 410697), (53, 402948), (54, 395486), (63, 338988), (78, 273798), (82, 260442), (84, 254241), (91, 234684), (106, 201474), (108, 197743), (117, 182532), (123, 173628), (126, 169494), (156, 136899), (159, 134316), (164, 130221), (182, 117342), (189, 112996), (212, 100737), (234, 91266), (246, 86814), (252, 84747), (273, 78228), (287, 74412), (318, 67158), (351, 60844), (364, 58671), (369, 57876), (371, 57564), (378, 56498), (468, 45633), (477, 44772), (492, 43407), (533, 40068), (546, 39114), (574, 37206), (636, 33579), (689, 30996), (702, 30422), (738, 28938), (742, 28782), (756, 28249), (819, 26076), (861, 24804), (954, 22386), (1066, 20034), (1092, 19557), (1107, 19292), (1113, 19188), (1148, 18603), (1378, 15498), (1404, 15211), (1431, 14924), (1476, 14469), (1484, 14391), (1599, 13356), (1638, 13038), (1722, 12402), (1908, 11193), (2067, 10332), (2132, 10017), (2173, 9828), (2214, 9646), (2226, 9594), (2457, 8692), (2583, 8268), (2756, 7749), (2862, 7462), (3198, 6678), (3276, 6519), (3339, 6396), (3444, 6201), (3731, 5724), (4134, 5166), (4346, 4914), (4428, 4823), (4452, 4797)]