18420685

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{1523}}^1$

素因数の和:1628

約数の個数: 16

約数和(自身を含む): 23042880

約数和(自身を除く): 4622195

約数列:

[1, 5, 41, 59, 205, 295, 1523, 2419, 7615, 12095, 62443, 89857, 312215, 449285, 3684137, 18420685]

約数ペア:

[(1, 18420685), (5, 3684137), (41, 449285), (59, 312215), (205, 89857), (295, 62443), (1523, 12095), (2419, 7615)]