18207679

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 21672000

約数和(自身を除く): 3464321

約数列:

[1, 7, 29, 203, 257, 349, 1799, 2443, 7453, 10121, 52171, 70847, 89693, 627851, 2601097, 18207679]

約数ペア:

[(1, 18207679), (7, 2601097), (29, 627851), (203, 89693), (257, 70847), (349, 52171), (1799, 10121), (2443, 7453)]