201021831

素因数分解:

$3^4\times {\mathrm{1531}}^1\times {\mathrm{1621}}^1$

素因数の和:3164

約数の個数: 20

約数和(自身を含む): 300673384

約数和(自身を除く): 99651553

約数列:

[1, 3, 9, 27, 81, 1531, 1621, 4593, 4863, 13779, 14589, 41337, 43767, 124011, 131301, 2481751, 7445253, 22335759, 67007277, 201021831]

約数ペア:

[(1, 201021831), (3, 67007277), (9, 22335759), (27, 7445253), (81, 2481751), (1531, 131301), (1621, 124011), (4593, 43767), (4863, 41337), (13779, 14589)]