18620245

素因数分解:

$5^1\times 7^2\times {\mathrm{76001}}^1$

素因数の和:76020

約数の個数: 12

約数和(自身を含む): 25992684

約数和(自身を除く): 7372439

約数列:

[1, 5, 7, 35, 49, 245, 76001, 380005, 532007, 2660035, 3724049, 18620245]

約数ペア:

[(1, 18620245), (5, 3724049), (7, 2660035), (35, 532007), (49, 380005), (245, 76001)]