11111821

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 13177728

約数和(自身を除く): 2065907

約数列:

[1, 7, 53, 61, 371, 427, 491, 3233, 3437, 22631, 26023, 29951, 182161, 209657, 1587403, 11111821]

約数ペア:

[(1, 11111821), (7, 1587403), (53, 209657), (61, 182161), (371, 29951), (427, 26023), (491, 22631), (3233, 3437)]