20381505

素因数分解:

$3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{7507}}^1$

素因数の和:7696

約数の個数: 16

約数和(自身を含む): 32794944

約数和(自身を除く): 12413439

約数列:

[1, 3, 5, 15, 181, 543, 905, 2715, 7507, 22521, 37535, 112605, 1358767, 4076301, 6793835, 20381505]

約数ペア:

[(1, 20381505), (3, 6793835), (5, 4076301), (15, 1358767), (181, 112605), (543, 37535), (905, 22521), (2715, 7507)]