18982817

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:428

約数の個数: 16

約数和(自身を含む): 22167552

約数和(自身を除く): 3184735

約数列:

[1, 7, 127, 131, 163, 889, 917, 1141, 16637, 20701, 21353, 116459, 144907, 149471, 2711831, 18982817]

約数ペア:

[(1, 18982817), (7, 2711831), (127, 149471), (131, 144907), (163, 116459), (889, 21353), (917, 20701), (1141, 16637)]