21239426

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1657}}^1$

素因数の和:1718

約数の個数: 32

約数和(自身を含む): 37603440

約数和(自身を除く): 16364014

約数列:

[1, 2, 13, 17, 26, 29, 34, 58, 221, 377, 442, 493, 754, 986, 1657, 3314, 6409, 12818, 21541, 28169, 43082, 48053, 56338, 96106, 366197, 624689, 732394, 816901, 1249378, 1633802, 10619713, 21239426]

約数ペア:

[(1, 21239426), (2, 10619713), (13, 1633802), (17, 1249378), (26, 816901), (29, 732394), (34, 624689), (58, 366197), (221, 96106), (377, 56338), (442, 48053), (493, 43082), (754, 28169), (986, 21541), (1657, 12818), (3314, 6409)]