257161209

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{479}}^1\times {\mathrm{2671}}^1$

素因数の和:3220

約数の個数: 16

約数和(自身を含む): 348856320

約数和(自身を除く): 91695111

約数列:

[1, 3, 67, 201, 479, 1437, 2671, 8013, 32093, 96279, 178957, 536871, 1279409, 3838227, 85720403, 257161209]

約数ペア:

[(1, 257161209), (3, 85720403), (67, 3838227), (201, 1279409), (479, 536871), (1437, 178957), (2671, 96279), (8013, 32093)]