20981176

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1361}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 41186880

約数和(自身を除く): 20205704

約数列:

[1, 2, 4, 8, 41, 47, 82, 94, 164, 188, 328, 376, 1361, 1927, 2722, 3854, 5444, 7708, 10888, 15416, 55801, 63967, 111602, 127934, 223204, 255868, 446408, 511736, 2622647, 5245294, 10490588, 20981176]

約数ペア:

[(1, 20981176), (2, 10490588), (4, 5245294), (8, 2622647), (41, 511736), (47, 446408), (82, 255868), (94, 223204), (164, 127934), (188, 111602), (328, 63967), (376, 55801), (1361, 15416), (1927, 10888), (2722, 7708), (3854, 5444)]