21031665

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19207}}^1$

素因数の和:19288

約数の個数: 16

約数和(自身を含む): 34113408

約数和(自身を除く): 13081743

約数列:

[1, 3, 5, 15, 73, 219, 365, 1095, 19207, 57621, 96035, 288105, 1402111, 4206333, 7010555, 21031665]

約数ペア:

[(1, 21031665), (3, 7010555), (5, 4206333), (15, 1402111), (73, 288105), (219, 96035), (365, 57621), (1095, 19207)]