25190019

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 37440000

約数和(自身を除く): 12249981

約数列:

[1, 3, 9, 71, 79, 213, 237, 499, 639, 711, 1497, 4491, 5609, 16827, 35429, 39421, 50481, 106287, 118263, 318861, 354789, 2798891, 8396673, 25190019]

約数ペア:

[(1, 25190019), (3, 8396673), (9, 2798891), (71, 354789), (79, 318861), (213, 118263), (237, 106287), (499, 50481), (639, 39421), (711, 35429), (1497, 16827), (4491, 5609)]