31287243

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{42223}}^1$

素因数の和:42258

約数の個数: 16

約数和(自身を含む): 47290880

約数和(自身を除く): 16003637

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 42223, 126669, 548899, 802237, 1646697, 2406711, 10429081, 31287243]

約数ペア:

[(1, 31287243), (3, 10429081), (13, 2406711), (19, 1646697), (39, 802237), (57, 548899), (247, 126669), (741, 42223)]