16921899

素因数分解:

$3^3\times {\mathrm{691}}^1\times {\mathrm{907}}^1$

素因数の和:1607

約数の個数: 16

約数和(自身を含む): 25133440

約数和(自身を除く): 8211541

約数列:

[1, 3, 9, 27, 691, 907, 2073, 2721, 6219, 8163, 18657, 24489, 626737, 1880211, 5640633, 16921899]

約数ペア:

[(1, 16921899), (3, 5640633), (9, 1880211), (27, 626737), (691, 24489), (907, 18657), (2073, 8163), (2721, 6219)]