28639289

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{617}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 34608000

約数和(自身を除く): 5968711

約数列:

[1, 7, 19, 133, 349, 617, 2443, 4319, 6631, 11723, 46417, 82061, 215333, 1507331, 4091327, 28639289]

約数ペア:

[(1, 28639289), (7, 4091327), (19, 1507331), (133, 215333), (349, 82061), (617, 46417), (2443, 11723), (4319, 6631)]