21457899

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{5801}}^1$

素因数の和:5947

約数の個数: 16

約数和(自身を含む): 32027040

約数和(自身を除く): 10569141

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 5801, 17403, 52209, 156627, 794737, 2384211, 7152633, 21457899]

約数ペア:

[(1, 21457899), (3, 7152633), (9, 2384211), (27, 794737), (137, 156627), (411, 52209), (1233, 17403), (3699, 5801)]