21258477

素因数分解:

$3^3\times {\mathrm{677}}^1\times {\mathrm{1163}}^1$

素因数の和:1849

約数の個数: 16

約数和(自身を含む): 31567680

約数和(自身を除く): 10309203

約数列:

[1, 3, 9, 27, 677, 1163, 2031, 3489, 6093, 10467, 18279, 31401, 787351, 2362053, 7086159, 21258477]

約数ペア:

[(1, 21258477), (3, 7086159), (9, 2362053), (27, 787351), (677, 31401), (1163, 18279), (2031, 10467), (3489, 6093)]