21724010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 49455360

約数和(自身を除く): 27731350

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 89, 110, 154, 178, 317, 385, 445, 623, 634, 770, 890, 979, 1246, 1585, 1958, 2219, 3115, 3170, 3487, 4438, 4895, 6230, 6853, 6974, 9790, 11095, 13706, 17435, 22190, 24409, 28213, 34265, 34870, 48818, 56426, 68530, 122045, 141065, 197491, 244090, 282130, 310343, 394982, 620686, 987455, 1551715, 1974910, 2172401, 3103430, 4344802, 10862005, 21724010]

約数ペア:

[(1, 21724010), (2, 10862005), (5, 4344802), (7, 3103430), (10, 2172401), (11, 1974910), (14, 1551715), (22, 987455), (35, 620686), (55, 394982), (70, 310343), (77, 282130), (89, 244090), (110, 197491), (154, 141065), (178, 122045), (317, 68530), (385, 56426), (445, 48818), (623, 34870), (634, 34265), (770, 28213), (890, 24409), (979, 22190), (1246, 17435), (1585, 13706), (1958, 11095), (2219, 9790), (3115, 6974), (3170, 6853), (3487, 6230), (4438, 4895)]