20352857

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1117}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 24685440

約数和(自身を除く): 4332583

約数列:

[1, 7, 19, 133, 137, 959, 1117, 2603, 7819, 18221, 21223, 148561, 153029, 1071203, 2907551, 20352857]

約数ペア:

[(1, 20352857), (7, 2907551), (19, 1071203), (133, 153029), (137, 148561), (959, 21223), (1117, 18221), (2603, 7819)]