1520572221

素因数分解:

$3^2\times 7^1\times {\mathrm{2389}}^1\times {\mathrm{10103}}^1$

素因数の和:12505

約数の個数: 24

約数和(自身を含む): 2511450240

約数和(自身を除く): 990878019

約数列:

[1, 3, 7, 9, 21, 63, 2389, 7167, 10103, 16723, 21501, 30309, 50169, 70721, 90927, 150507, 212163, 636489, 24136067, 72408201, 168952469, 217224603, 506857407, 1520572221]

約数ペア:

[(1, 1520572221), (3, 506857407), (7, 217224603), (9, 168952469), (21, 72408201), (63, 24136067), (2389, 636489), (7167, 212163), (10103, 150507), (16723, 90927), (21501, 70721), (30309, 50169)]