20427615

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34919}}^1$

素因数の和:34943

約数の個数: 24

約数和(自身を含む): 38132640

約数和(自身を除く): 17705025

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 34919, 104757, 174595, 314271, 453947, 523785, 1361841, 1571355, 2269735, 4085523, 6809205, 20427615]

約数ペア:

[(1, 20427615), (3, 6809205), (5, 4085523), (9, 2269735), (13, 1571355), (15, 1361841), (39, 523785), (45, 453947), (65, 314271), (117, 174595), (195, 104757), (585, 34919)]