20784215

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{733}}^1$

素因数の和:898

約数の個数: 16

約数和(自身を含む): 25684128

約数和(自身を除く): 4899913

約数列:

[1, 5, 53, 107, 265, 535, 733, 3665, 5671, 28355, 38849, 78431, 194245, 392155, 4156843, 20784215]

約数ペア:

[(1, 20784215), (5, 4156843), (53, 392155), (107, 194245), (265, 78431), (535, 38849), (733, 28355), (3665, 5671)]