161721816

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{396377}}^1$

素因数の和:396403

約数の個数: 32

約数和(自身を含む): 428088240

約数和(自身を除く): 266366424

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 396377, 792754, 1189131, 1585508, 2378262, 3171016, 4756524, 6738409, 9513048, 13476818, 20215227, 26953636, 40430454, 53907272, 80860908, 161721816]

約数ペア:

[(1, 161721816), (2, 80860908), (3, 53907272), (4, 40430454), (6, 26953636), (8, 20215227), (12, 13476818), (17, 9513048), (24, 6738409), (34, 4756524), (51, 3171016), (68, 2378262), (102, 1585508), (136, 1189131), (204, 792754), (408, 396377)]