20385915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123551}}^1$

素因数の和:123570

約数の個数: 16

約数和(自身を含む): 35582976

約数和(自身を除く): 15197061

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 123551, 370653, 617755, 1359061, 1853265, 4077183, 6795305, 20385915]

約数ペア:

[(1, 20385915), (3, 6795305), (5, 4077183), (11, 1853265), (15, 1359061), (33, 617755), (55, 370653), (165, 123551)]