13030731

素因数分解:

$3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{521}}^1$

素因数の和:931

約数の個数: 24

約数和(自身を含む): 21606624

約数和(自身を除く): 8575893

約数列:

[1, 3, 7, 9, 21, 63, 397, 521, 1191, 1563, 2779, 3573, 3647, 4689, 8337, 10941, 25011, 32823, 206837, 620511, 1447859, 1861533, 4343577, 13030731]

約数ペア:

[(1, 13030731), (3, 4343577), (7, 1861533), (9, 1447859), (21, 620511), (63, 206837), (397, 32823), (521, 25011), (1191, 10941), (1563, 8337), (2779, 4689), (3573, 3647)]