11721225

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1193}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 19543392

約数和(自身を除く): 7822167

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1193, 1965, 3275, 3579, 5965, 9825, 17895, 29825, 89475, 156283, 468849, 781415, 2344245, 3907075, 11721225]

約数ペア:

[(1, 11721225), (3, 3907075), (5, 2344245), (15, 781415), (25, 468849), (75, 156283), (131, 89475), (393, 29825), (655, 17895), (1193, 9825), (1965, 5965), (3275, 3579)]