21968025

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{3529}}^1$

素因数の和:3625

約数の個数: 24

約数和(自身を含む): 36768480

約数和(自身を除く): 14800455

約数列:

[1, 3, 5, 15, 25, 75, 83, 249, 415, 1245, 2075, 3529, 6225, 10587, 17645, 52935, 88225, 264675, 292907, 878721, 1464535, 4393605, 7322675, 21968025]

約数ペア:

[(1, 21968025), (3, 7322675), (5, 4393605), (15, 1464535), (25, 878721), (75, 292907), (83, 264675), (249, 88225), (415, 52935), (1245, 17645), (2075, 10587), (3529, 6225)]