20687572

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{3851}}^1$

素因数の和:3951

約数の個数: 24

約数和(自身を含む): 38828160

約数和(自身を除く): 18140588

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 3851, 5372, 7702, 15404, 65467, 130934, 261868, 304229, 608458, 1216916, 5171893, 10343786, 20687572]

約数ペア:

[(1, 20687572), (2, 10343786), (4, 5171893), (17, 1216916), (34, 608458), (68, 304229), (79, 261868), (158, 130934), (316, 65467), (1343, 15404), (2686, 7702), (3851, 5372)]