18715741

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{601}}^1$

素因数の和:780

約数の個数: 16

約数和(自身を含む): 21672000

約数和(自身を除く): 2956259

約数列:

[1, 11, 19, 149, 209, 601, 1639, 2831, 6611, 11419, 31141, 89549, 125609, 985039, 1701431, 18715741]

約数ペア:

[(1, 18715741), (11, 1701431), (19, 985039), (149, 125609), (209, 89549), (601, 31141), (1639, 11419), (2831, 6611)]