20625129

素因数分解:

$3^2\times 7^2\times {\mathrm{46769}}^1$

素因数の和:46789

約数の個数: 18

約数和(自身を含む): 34656570

約数和(自身を除く): 14031441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46769, 140307, 327383, 420921, 982149, 2291681, 2946447, 6875043, 20625129]

約数ペア:

[(1, 20625129), (3, 6875043), (7, 2946447), (9, 2291681), (21, 982149), (49, 420921), (63, 327383), (147, 140307), (441, 46769)]