15207507

素因数分解:

$3^4\times 7^1\times {\mathrm{26821}}^1$

素因数の和:26840

約数の個数: 20

約数和(自身を含む): 25963696

約数和(自身を除く): 10756189

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 26821, 80463, 187747, 241389, 563241, 724167, 1689723, 2172501, 5069169, 15207507]

約数ペア:

[(1, 15207507), (3, 5069169), (7, 2172501), (9, 1689723), (21, 724167), (27, 563241), (63, 241389), (81, 187747), (189, 80463), (567, 26821)]