159721919

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{11279}}^1$

素因数の和:11327

約数の個数: 18

約数和(自身を含む): 197388720

約数和(自身を除く): 37666801

約数列:

[1, 7, 17, 49, 119, 289, 833, 2023, 11279, 14161, 78953, 191743, 552671, 1342201, 3259631, 9395407, 22817417, 159721919]

約数ペア:

[(1, 159721919), (7, 22817417), (17, 9395407), (49, 3259631), (119, 1342201), (289, 552671), (833, 191743), (2023, 78953), (11279, 14161)]