31687689

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 47798784

約数和(自身を除く): 16111095

約数列:

[1, 3, 11, 33, 43, 129, 137, 163, 411, 473, 489, 1419, 1507, 1793, 4521, 5379, 5891, 7009, 17673, 21027, 22331, 64801, 66993, 77099, 194403, 231297, 245641, 736923, 960233, 2880699, 10562563, 31687689]

約数ペア:

[(1, 31687689), (3, 10562563), (11, 2880699), (33, 960233), (43, 736923), (129, 245641), (137, 231297), (163, 194403), (411, 77099), (473, 66993), (489, 64801), (1419, 22331), (1507, 21027), (1793, 17673), (4521, 7009), (5379, 5891)]