9891225

素因数分解:

$3^2\times 5^2\times {\mathrm{43961}}^1$

素因数の和:43977

約数の個数: 18

約数和(自身を含む): 17716686

約数和(自身を除く): 7825461

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 43961, 131883, 219805, 395649, 659415, 1099025, 1978245, 3297075, 9891225]

約数ペア:

[(1, 9891225), (3, 3297075), (5, 1978245), (9, 1099025), (15, 659415), (25, 395649), (45, 219805), (75, 131883), (225, 43961)]