18540145

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{593}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 24784056

約数和(自身を除く): 6243911

約数列:

[1, 5, 13, 37, 65, 169, 185, 481, 593, 845, 2405, 2965, 6253, 7709, 21941, 31265, 38545, 100217, 109705, 285233, 501085, 1426165, 3708029, 18540145]

約数ペア:

[(1, 18540145), (5, 3708029), (13, 1426165), (37, 501085), (65, 285233), (169, 109705), (185, 100217), (481, 38545), (593, 31265), (845, 21941), (2405, 7709), (2965, 6253)]