28391987

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:998

約数の個数: 16

約数和(自身を含む): 31907232

約数和(自身を除く): 3515245

約数列:

[1, 13, 37, 67, 481, 871, 881, 2479, 11453, 32227, 32597, 59027, 423761, 767351, 2183999, 28391987]

約数ペア:

[(1, 28391987), (13, 2183999), (37, 767351), (67, 423761), (481, 59027), (871, 32597), (881, 32227), (2479, 11453)]