21908826

素因数分解:

$2^1\times 3^3\times {\mathrm{405719}}^1$

素因数の和:405730

約数の個数: 16

約数和(自身を含む): 48686400

約数和(自身を除く): 26777574

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 405719, 811438, 1217157, 2434314, 3651471, 7302942, 10954413, 21908826]

約数ペア:

[(1, 21908826), (2, 10954413), (3, 7302942), (6, 3651471), (9, 2434314), (18, 1217157), (27, 811438), (54, 405719)]