20161318

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{1231}}^1$

素因数の和:1683

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 11772122

約数列:

[1, 2, 19, 38, 431, 862, 1231, 2462, 8189, 16378, 23389, 46778, 530561, 1061122, 10080659, 20161318]

約数ペア:

[(1, 20161318), (2, 10080659), (19, 1061122), (38, 530561), (431, 46778), (862, 23389), (1231, 16378), (2462, 8189)]