20931267

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{58631}}^1$

素因数の和:58658

約数の個数: 16

約数和(自身を含む): 33772032

約数和(自身を除く): 12840765

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 58631, 175893, 410417, 996727, 1231251, 2990181, 6977089, 20931267]

約数ペア:

[(1, 20931267), (3, 6977089), (7, 2990181), (17, 1231251), (21, 996727), (51, 410417), (119, 175893), (357, 58631)]