21186345

素因数分解:

$3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{5099}}^1$

素因数の和:5384

約数の個数: 16

約数和(自身を含む): 34027200

約数和(自身を除く): 12840855

約数列:

[1, 3, 5, 15, 277, 831, 1385, 4155, 5099, 15297, 25495, 76485, 1412423, 4237269, 7062115, 21186345]

約数ペア:

[(1, 21186345), (3, 7062115), (5, 4237269), (15, 1412423), (277, 76485), (831, 25495), (1385, 15297), (4155, 5099)]