19957818

素因数分解:

$2^1\times 3^1\times {\mathrm{439}}^1\times {\mathrm{7577}}^1$

素因数の和:8021

約数の個数: 16

約数和(自身を含む): 40011840

約数和(自身を除く): 20054022

約数列:

[1, 2, 3, 6, 439, 878, 1317, 2634, 7577, 15154, 22731, 45462, 3326303, 6652606, 9978909, 19957818]

約数ペア:

[(1, 19957818), (2, 9978909), (3, 6652606), (6, 3326303), (439, 45462), (878, 22731), (1317, 15154), (2634, 7577)]