25980507

素因数分解:

$3^4\times 7^1\times {\mathrm{45821}}^1$

素因数の和:45840

約数の個数: 20

約数和(自身を含む): 44355696

約数和(自身を除く): 18375189

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 45821, 137463, 320747, 412389, 962241, 1237167, 2886723, 3711501, 8660169, 25980507]

約数ペア:

[(1, 25980507), (3, 8660169), (7, 3711501), (9, 2886723), (21, 1237167), (27, 962241), (63, 412389), (81, 320747), (189, 137463), (567, 45821)]