18966899

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1\times {\mathrm{401}}^1$

素因数の和:670

約数の個数: 16

約数和(自身を含む): 22576320

約数和(自身を除く): 3609421

約数列:

[1, 7, 29, 203, 233, 401, 1631, 2807, 6757, 11629, 47299, 81403, 93433, 654031, 2709557, 18966899]

約数ペア:

[(1, 18966899), (7, 2709557), (29, 654031), (203, 93433), (233, 81403), (401, 47299), (1631, 11629), (2807, 6757)]