21156356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2927}}^1$

素因数の和:3083

約数の個数: 24

約数和(自身を含む): 40172160

約数和(自身を除く): 19015804

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2927, 3614, 5854, 7228, 11708, 38051, 76102, 152204, 406853, 813706, 1627412, 5289089, 10578178, 21156356]

約数ペア:

[(1, 21156356), (2, 10578178), (4, 5289089), (13, 1627412), (26, 813706), (52, 406853), (139, 152204), (278, 76102), (556, 38051), (1807, 11708), (2927, 7228), (3614, 5854)]