18944605

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 23328000

約数和(自身を除く): 4383395

約数列:

[1, 5, 59, 149, 295, 431, 745, 2155, 8791, 25429, 43955, 64219, 127145, 321095, 3788921, 18944605]

約数ペア:

[(1, 18944605), (5, 3788921), (59, 321095), (149, 127145), (295, 64219), (431, 43955), (745, 25429), (2155, 8791)]