20616827

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 26263776

約数和(自身を除く): 5646949

約数列:

[1, 7, 11, 77, 101, 121, 241, 707, 847, 1111, 1687, 2651, 7777, 12221, 18557, 24341, 29161, 85547, 170387, 204127, 267751, 1874257, 2945261, 20616827]

約数ペア:

[(1, 20616827), (7, 2945261), (11, 1874257), (77, 267751), (101, 204127), (121, 170387), (241, 85547), (707, 29161), (847, 24341), (1111, 18557), (1687, 12221), (2651, 7777)]