21611015570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127123621}}^1$

素因数の和:127123645

約数の個数: 16

約数和(自身を含む): 41188053528

約数和(自身を除く): 19577037958

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127123621, 254247242, 635618105, 1271236210, 2161101557, 4322203114, 10805507785, 21611015570]

約数ペア:

[(1, 21611015570), (2, 10805507785), (5, 4322203114), (10, 2161101557), (17, 1271236210), (34, 635618105), (85, 254247242), (170, 127123621)]