256536621

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{32801}}^1$

素因数の和:32897

約数の個数: 24

約数和(自身を含む): 409368960

約数和(自身を除く): 152832339

約数列:

[1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2607, 7821, 32801, 98403, 295209, 360811, 1082433, 2591279, 3247299, 7773837, 23321511, 28504069, 85512207, 256536621]

約数ペア:

[(1, 256536621), (3, 85512207), (9, 28504069), (11, 23321511), (33, 7773837), (79, 3247299), (99, 2591279), (237, 1082433), (711, 360811), (869, 295209), (2607, 98403), (7821, 32801)]