20865429

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1283}}^1$

素因数の和:1441

約数の個数: 24

約数和(自身を含む): 32716320

約数和(自身を除く): 11850891

約数列:

[1, 3, 9, 13, 39, 117, 139, 417, 1251, 1283, 1807, 3849, 5421, 11547, 16263, 16679, 50037, 150111, 178337, 535011, 1605033, 2318381, 6955143, 20865429]

約数ペア:

[(1, 20865429), (3, 6955143), (9, 2318381), (13, 1605033), (39, 535011), (117, 178337), (139, 150111), (417, 50037), (1251, 16679), (1283, 16263), (1807, 11547), (3849, 5421)]