18968031

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2131}}^1$

素因数の和:2203

約数の個数: 24

約数和(自身を含む): 29268096

約数和(自身を除く): 10300065

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2131, 2967, 6393, 8901, 19179, 49013, 91633, 147039, 274899, 441117, 824697, 2107559, 6322677, 18968031]

約数ペア:

[(1, 18968031), (3, 6322677), (9, 2107559), (23, 824697), (43, 441117), (69, 274899), (129, 147039), (207, 91633), (387, 49013), (989, 19179), (2131, 8901), (2967, 6393)]