25349121

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1223}}^1$

素因数の和:1290

約数の個数: 36

約数和(自身を含む): 43535232

約数和(自身を除く): 18186111

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 1223, 2303, 2961, 3669, 6909, 8561, 11007, 20727, 25683, 57481, 59927, 77049, 172443, 179781, 402367, 517329, 539343, 1207101, 2816569, 3621303, 8449707, 25349121]

約数ペア:

[(1, 25349121), (3, 8449707), (7, 3621303), (9, 2816569), (21, 1207101), (47, 539343), (49, 517329), (63, 402367), (141, 179781), (147, 172443), (329, 77049), (423, 59927), (441, 57481), (987, 25683), (1223, 20727), (2303, 11007), (2961, 8561), (3669, 6909)]