28777273

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 33546240

約数和(自身を除く): 4768967

約数列:

[1, 7, 103, 167, 239, 721, 1169, 1673, 17201, 24617, 39913, 120407, 172319, 279391, 4111039, 28777273]

約数ペア:

[(1, 28777273), (7, 4111039), (103, 279391), (167, 172319), (239, 120407), (721, 39913), (1169, 24617), (1673, 17201)]