631881

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:310

約数の個数: 20

約数和(自身を含む): 980100

約数和(自身を除く): 348219

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 269, 783, 807, 2349, 2421, 7263, 7801, 21789, 23403, 70209, 210627, 631881]

約数ペア:

[(1, 631881), (3, 210627), (9, 70209), (27, 23403), (29, 21789), (81, 7801), (87, 7263), (261, 2421), (269, 2349), (783, 807)]