172800621

素因数分解:

$3^4\times 7^1\times {\mathrm{304763}}^1$

素因数の和:304782

約数の個数: 20

約数和(自身を含む): 295011552

約数和(自身を除く): 122210931

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 304763, 914289, 2133341, 2742867, 6400023, 8228601, 19200069, 24685803, 57600207, 172800621]

約数ペア:

[(1, 172800621), (3, 57600207), (7, 24685803), (9, 19200069), (21, 8228601), (27, 6400023), (63, 2742867), (81, 2133341), (189, 914289), (567, 304763)]