21108311

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{773}}^1$

素因数の和:910

約数の個数: 16

約数和(自身を含む): 24966144

約数和(自身を除く): 3857833

約数列:

[1, 7, 47, 83, 329, 581, 773, 3901, 5411, 27307, 36331, 64159, 254317, 449113, 3015473, 21108311]

約数ペア:

[(1, 21108311), (7, 3015473), (47, 449113), (83, 254317), (329, 64159), (581, 36331), (773, 27307), (3901, 5411)]