66918019

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{11701}}^1$

素因数の和:11770

約数の個数: 16

約数和(自身を含む): 82382080

約数和(自身を除く): 15464061

約数列:

[1, 7, 19, 43, 133, 301, 817, 5719, 11701, 81907, 222319, 503143, 1556233, 3522001, 9559717, 66918019]

約数ペア:

[(1, 66918019), (7, 9559717), (19, 3522001), (43, 1556233), (133, 503143), (301, 222319), (817, 81907), (5719, 11701)]