18321665

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{491}}^1$

素因数の和:952

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 5058175

約数列:

[1, 5, 17, 85, 439, 491, 2195, 2455, 7463, 8347, 37315, 41735, 215549, 1077745, 3664333, 18321665]

約数ペア:

[(1, 18321665), (5, 3664333), (17, 1077745), (85, 215549), (439, 41735), (491, 37315), (2195, 8347), (2455, 7463)]