18961970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1571}}^1$

素因数の和:1666

約数の個数: 32

約数和(自身を含む): 36671616

約数和(自身を除く): 17709646

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 355, 710, 1207, 1571, 2414, 3142, 6035, 7855, 12070, 15710, 26707, 53414, 111541, 133535, 223082, 267070, 557705, 1115410, 1896197, 3792394, 9480985, 18961970]

約数ペア:

[(1, 18961970), (2, 9480985), (5, 3792394), (10, 1896197), (17, 1115410), (34, 557705), (71, 267070), (85, 223082), (142, 133535), (170, 111541), (355, 53414), (710, 26707), (1207, 15710), (1571, 12070), (2414, 7855), (3142, 6035)]