20712675

素因数分解:

$3^1\times 5^2\times {\mathrm{277}}^1\times {\mathrm{997}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 34403056

約数和(自身を除く): 13690381

約数列:

[1, 3, 5, 15, 25, 75, 277, 831, 997, 1385, 2991, 4155, 4985, 6925, 14955, 20775, 24925, 74775, 276169, 828507, 1380845, 4142535, 6904225, 20712675]

約数ペア:

[(1, 20712675), (3, 6904225), (5, 4142535), (15, 1380845), (25, 828507), (75, 276169), (277, 74775), (831, 24925), (997, 20775), (1385, 14955), (2991, 6925), (4155, 4985)]