21631939

素因数分解:

$7^1\times {\mathrm{17}}^4\times {\mathrm{37}}^1$

素因数の和:112

約数の個数: 20

約数和(自身を含む): 26977264

約数和(自身を除く): 5345325

約数列:

[1, 7, 17, 37, 119, 259, 289, 629, 2023, 4403, 4913, 10693, 34391, 74851, 83521, 181781, 584647, 1272467, 3090277, 21631939]

約数ペア:

[(1, 21631939), (7, 3090277), (17, 1272467), (37, 584647), (119, 181781), (259, 83521), (289, 74851), (629, 34391), (2023, 10693), (4403, 4913)]