20567211

素因数分解:

$3^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{773}}^1$

素因数の和:971

約数の個数: 24

約数和(自身を含む): 32117904

約数和(自身を除く): 11550693

約数列:

[1, 3, 7, 21, 49, 147, 181, 543, 773, 1267, 2319, 3801, 5411, 8869, 16233, 26607, 37877, 113631, 139913, 419739, 979391, 2938173, 6855737, 20567211]

約数ペア:

[(1, 20567211), (3, 6855737), (7, 2938173), (21, 979391), (49, 419739), (147, 139913), (181, 113631), (543, 37877), (773, 26607), (1267, 16233), (2319, 8869), (3801, 5411)]