18570310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{421}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 36643104

約数和(自身を除く): 18072794

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 401, 421, 802, 842, 2005, 2105, 4010, 4210, 4411, 4631, 8822, 9262, 22055, 23155, 44110, 46310, 168821, 337642, 844105, 1688210, 1857031, 3714062, 9285155, 18570310]

約数ペア:

[(1, 18570310), (2, 9285155), (5, 3714062), (10, 1857031), (11, 1688210), (22, 844105), (55, 337642), (110, 168821), (401, 46310), (421, 44110), (802, 23155), (842, 22055), (2005, 9262), (2105, 8822), (4010, 4631), (4210, 4411)]