21081801888

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{10457243}}^1$

素因数の和:10457266

約数の個数: 72

約数和(自身を含む): 68515862688

約数和(自身を除く): 47434060800

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 10457243, 20914486, 31371729, 41828972, 62743458, 73200701, 83657944, 94115187, 125486916, 146401402, 167315888, 188230374, 219602103, 250973832, 292802804, 334631776, 376460748, 439204206, 501947664, 585605608, 658806309, 752921496, 878408412, 1003895328, 1171211216, 1317612618, 1505842992, 1756816824, 2342422432, 2635225236, 3011685984, 3513633648, 5270450472, 7027267296, 10540900944, 21081801888]

約数ペア:

[(1, 21081801888), (2, 10540900944), (3, 7027267296), (4, 5270450472), (6, 3513633648), (7, 3011685984), (8, 2635225236), (9, 2342422432), (12, 1756816824), (14, 1505842992), (16, 1317612618), (18, 1171211216), (21, 1003895328), (24, 878408412), (28, 752921496), (32, 658806309), (36, 585605608), (42, 501947664), (48, 439204206), (56, 376460748), (63, 334631776), (72, 292802804), (84, 250973832), (96, 219602103), (112, 188230374), (126, 167315888), (144, 146401402), (168, 125486916), (224, 94115187), (252, 83657944), (288, 73200701), (336, 62743458), (504, 41828972), (672, 31371729), (1008, 20914486), (2016, 10457243)]