31268187

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5437}}^1$

素因数の和:5520

約数の個数: 20

約数和(自身を含む): 47375856

約数和(自身を除く): 16107669

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5437, 5751, 16311, 48933, 146799, 386027, 440397, 1158081, 3474243, 10422729, 31268187]

約数ペア:

[(1, 31268187), (3, 10422729), (9, 3474243), (27, 1158081), (71, 440397), (81, 386027), (213, 146799), (639, 48933), (1917, 16311), (5437, 5751)]