21990284496

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{691}}^1\times {\mathrm{7129}}^1$

素因数の和:7865

約数の個数: 120

約数和(自身を含む): 63628348160

約数和(自身を除く): 41638063664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 144, 186, 248, 279, 372, 496, 558, 691, 744, 1116, 1382, 1488, 2073, 2232, 2764, 4146, 4464, 5528, 6219, 7129, 8292, 11056, 12438, 14258, 16584, 21387, 21421, 24876, 28516, 33168, 42774, 42842, 49752, 57032, 64161, 64263, 85548, 85684, 99504, 114064, 128322, 128526, 171096, 171368, 192789, 220999, 256644, 257052, 342192, 342736, 385578, 441998, 513288, 514104, 662997, 771156, 883996, 1026576, 1028208, 1325994, 1542312, 1767992, 1988991, 2651988, 3084624, 3535984, 3977982, 4926139, 5303976, 7955964, 9852278, 10607952, 14778417, 15911928, 19704556, 29556834, 31823856, 39409112, 44335251, 59113668, 78818224, 88670502, 118227336, 152710309, 177341004, 236454672, 305420618, 354682008, 458130927, 610841236, 709364016, 916261854, 1221682472, 1374392781, 1832523708, 2443364944, 2748785562, 3665047416, 5497571124, 7330094832, 10995142248, 21990284496]

約数ペア:

[(1, 21990284496), (2, 10995142248), (3, 7330094832), (4, 5497571124), (6, 3665047416), (8, 2748785562), (9, 2443364944), (12, 1832523708), (16, 1374392781), (18, 1221682472), (24, 916261854), (31, 709364016), (36, 610841236), (48, 458130927), (62, 354682008), (72, 305420618), (93, 236454672), (124, 177341004), (144, 152710309), (186, 118227336), (248, 88670502), (279, 78818224), (372, 59113668), (496, 44335251), (558, 39409112), (691, 31823856), (744, 29556834), (1116, 19704556), (1382, 15911928), (1488, 14778417), (2073, 10607952), (2232, 9852278), (2764, 7955964), (4146, 5303976), (4464, 4926139), (5528, 3977982), (6219, 3535984), (7129, 3084624), (8292, 2651988), (11056, 1988991), (12438, 1767992), (14258, 1542312), (16584, 1325994), (21387, 1028208), (21421, 1026576), (24876, 883996), (28516, 771156), (33168, 662997), (42774, 514104), (42842, 513288), (49752, 441998), (57032, 385578), (64161, 342736), (64263, 342192), (85548, 257052), (85684, 256644), (99504, 220999), (114064, 192789), (128322, 171368), (128526, 171096)]