87813621

素因数分解:

$3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{3511}}^1$

素因数の和:3921

約数の個数: 24

約数和(自身を含む): 145368704

約数和(自身を除く): 57555083

約数列:

[1, 3, 7, 9, 21, 63, 397, 1191, 2779, 3511, 3573, 8337, 10533, 24577, 25011, 31599, 73731, 221193, 1393867, 4181601, 9757069, 12544803, 29271207, 87813621]

約数ペア:

[(1, 87813621), (3, 29271207), (7, 12544803), (9, 9757069), (21, 4181601), (63, 1393867), (397, 221193), (1191, 73731), (2779, 31599), (3511, 25011), (3573, 24577), (8337, 10533)]