21106335

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{761}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 34619184

約数和(自身を除く): 13512849

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 761, 1849, 2283, 3805, 5547, 9245, 11415, 27735, 32723, 98169, 163615, 490845, 1407089, 4221267, 7035445, 21106335]

約数ペア:

[(1, 21106335), (3, 7035445), (5, 4221267), (15, 1407089), (43, 490845), (129, 163615), (215, 98169), (645, 32723), (761, 27735), (1849, 11415), (2283, 9245), (3805, 5547)]