19290505

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 25785432

約数和(自身を除く): 6494927

約数列:

[1, 5, 13, 37, 65, 169, 185, 481, 617, 845, 2405, 3085, 6253, 8021, 22829, 31265, 40105, 104273, 114145, 296777, 521365, 1483885, 3858101, 19290505]

約数ペア:

[(1, 19290505), (5, 3858101), (13, 1483885), (37, 521365), (65, 296777), (169, 114145), (185, 104273), (481, 40105), (617, 31265), (845, 22829), (2405, 8021), (3085, 6253)]