18144511

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3863}}^1$

素因数の和:3942

約数の個数: 16

約数和(自身を含む): 22998528

約数和(自身を除く): 4854017

約数列:

[1, 7, 11, 61, 77, 427, 671, 3863, 4697, 27041, 42493, 235643, 297451, 1649501, 2592073, 18144511]

約数ペア:

[(1, 18144511), (7, 2592073), (11, 1649501), (61, 297451), (77, 235643), (427, 42493), (671, 27041), (3863, 4697)]