20542605

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31849}}^1$

素因数の和:31900

約数の個数: 16

約数和(自身を含む): 33633600

約数和(自身を除く): 13090995

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31849, 95547, 159245, 477735, 1369507, 4108521, 6847535, 20542605]

約数ペア:

[(1, 20542605), (3, 6847535), (5, 4108521), (15, 1369507), (43, 477735), (129, 159245), (215, 95547), (645, 31849)]