21496665

素因数分解:

$3^1\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{1283}}^1$

素因数の和:2408

約数の個数: 16

約数和(自身を含む): 34452288

約数和(自身を除く): 12955623

約数列:

[1, 3, 5, 15, 1117, 1283, 3351, 3849, 5585, 6415, 16755, 19245, 1433111, 4299333, 7165555, 21496665]

約数ペア:

[(1, 21496665), (3, 7165555), (5, 4299333), (15, 1433111), (1117, 19245), (1283, 16755), (3351, 6415), (3849, 5585)]