28146923

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:664

約数の個数: 20

約数和(自身を含む): 34620360

約数和(自身を除く): 6473437

約数列:

[1, 7, 19, 49, 133, 343, 617, 931, 2401, 4319, 6517, 11723, 30233, 45619, 82061, 211631, 574427, 1481417, 4020989, 28146923]

約数ペア:

[(1, 28146923), (7, 4020989), (19, 1481417), (49, 574427), (133, 211631), (343, 82061), (617, 45619), (931, 30233), (2401, 11723), (4319, 6517)]