31306281

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 44586144

約数和(自身を除く): 13279863

約数列:

[1, 3, 19, 57, 137, 211, 361, 411, 633, 1083, 2603, 4009, 7809, 12027, 28907, 49457, 76171, 86721, 148371, 228513, 549233, 1647699, 10435427, 31306281]

約数ペア:

[(1, 31306281), (3, 10435427), (19, 1647699), (57, 549233), (137, 228513), (211, 148371), (361, 86721), (411, 76171), (633, 49457), (1083, 28907), (2603, 12027), (4009, 7809)]