18799417

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 6037703

約数列:

[1, 7, 13, 19, 83, 91, 131, 133, 247, 581, 917, 1079, 1577, 1703, 1729, 2489, 7553, 10873, 11039, 11921, 17423, 20501, 32357, 76111, 141349, 143507, 206587, 226499, 989443, 1446109, 2685631, 18799417]

約数ペア:

[(1, 18799417), (7, 2685631), (13, 1446109), (19, 989443), (83, 226499), (91, 206587), (131, 143507), (133, 141349), (247, 76111), (581, 32357), (917, 20501), (1079, 17423), (1577, 11921), (1703, 11039), (1729, 10873), (2489, 7553)]