20651379

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57847}}^1$

素因数の和:57874

約数の個数: 16

約数和(自身を含む): 33320448

約数和(自身を除く): 12669069

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57847, 173541, 404929, 983399, 1214787, 2950197, 6883793, 20651379]

約数ペア:

[(1, 20651379), (3, 6883793), (7, 2950197), (17, 1214787), (21, 983399), (51, 404929), (119, 173541), (357, 57847)]