21937860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{757}}^1$

素因数の和:802

約数の個数: 144

約数和(自身を含む): 79462656

約数和(自身を除く): 57524796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 757, 805, 828, 966, 1035, 1260, 1380, 1449, 1514, 1610, 1932, 2070, 2271, 2415, 2898, 3028, 3220, 3785, 4140, 4542, 4830, 5299, 5796, 6813, 7245, 7570, 9084, 9660, 10598, 11355, 13626, 14490, 15140, 15897, 17411, 21196, 22710, 26495, 27252, 28980, 31794, 34065, 34822, 45420, 47691, 52233, 52990, 63588, 68130, 69644, 79485, 87055, 95382, 104466, 105980, 121877, 136260, 156699, 158970, 174110, 190764, 208932, 238455, 243754, 261165, 313398, 317940, 348220, 365631, 476910, 487508, 522330, 609385, 626796, 731262, 783495, 953820, 1044660, 1096893, 1218770, 1462524, 1566990, 1828155, 2193786, 2437540, 3133980, 3656310, 4387572, 5484465, 7312620, 10968930, 21937860]

約数ペア:

[(1, 21937860), (2, 10968930), (3, 7312620), (4, 5484465), (5, 4387572), (6, 3656310), (7, 3133980), (9, 2437540), (10, 2193786), (12, 1828155), (14, 1566990), (15, 1462524), (18, 1218770), (20, 1096893), (21, 1044660), (23, 953820), (28, 783495), (30, 731262), (35, 626796), (36, 609385), (42, 522330), (45, 487508), (46, 476910), (60, 365631), (63, 348220), (69, 317940), (70, 313398), (84, 261165), (90, 243754), (92, 238455), (105, 208932), (115, 190764), (126, 174110), (138, 158970), (140, 156699), (161, 136260), (180, 121877), (207, 105980), (210, 104466), (230, 95382), (252, 87055), (276, 79485), (315, 69644), (322, 68130), (345, 63588), (414, 52990), (420, 52233), (460, 47691), (483, 45420), (630, 34822), (644, 34065), (690, 31794), (757, 28980), (805, 27252), (828, 26495), (966, 22710), (1035, 21196), (1260, 17411), (1380, 15897), (1449, 15140), (1514, 14490), (1610, 13626), (1932, 11355), (2070, 10598), (2271, 9660), (2415, 9084), (2898, 7570), (3028, 7245), (3220, 6813), (3785, 5796), (4140, 5299), (4542, 4830)]