21013870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1741}}^1$

素因数の和:1836

約数の個数: 32

約数和(自身を含む): 40637376

約数和(自身を除く): 19623506

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 355, 710, 1207, 1741, 2414, 3482, 6035, 8705, 12070, 17410, 29597, 59194, 123611, 147985, 247222, 295970, 618055, 1236110, 2101387, 4202774, 10506935, 21013870]

約数ペア:

[(1, 21013870), (2, 10506935), (5, 4202774), (10, 2101387), (17, 1236110), (34, 618055), (71, 295970), (85, 247222), (142, 147985), (170, 123611), (355, 59194), (710, 29597), (1207, 17410), (1741, 12070), (2414, 8705), (3482, 6035)]