18091493

素因数分解:

$7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:428

約数の個数: 16

約数和(自身を含む): 21141120

約数和(自身を除く): 3049627

約数列:

[1, 7, 109, 131, 181, 763, 917, 1267, 14279, 19729, 23711, 99953, 138103, 165977, 2584499, 18091493]

約数ペア:

[(1, 18091493), (7, 2584499), (109, 165977), (131, 138103), (181, 99953), (763, 23711), (917, 19729), (1267, 14279)]