25290909

素因数分解:

$3^2\times 7^2\times {\mathrm{57349}}^1$

素因数の和:57369

約数の個数: 18

約数和(自身を含む): 42496350

約数和(自身を除く): 17205441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 57349, 172047, 401443, 516141, 1204329, 2810101, 3612987, 8430303, 25290909]

約数ペア:

[(1, 25290909), (3, 8430303), (7, 3612987), (9, 2810101), (21, 1204329), (49, 516141), (63, 401443), (147, 172047), (441, 57349)]