20402319

素因数分解:

$3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{3433}}^1$

素因数の和:3726

約数の個数: 16

約数和(自身を含む): 31208192

約数和(自身を除く): 10805873

約数列:

[1, 3, 7, 21, 283, 849, 1981, 3433, 5943, 10299, 24031, 72093, 971539, 2914617, 6800773, 20402319]

約数ペア:

[(1, 20402319), (3, 6800773), (7, 2914617), (21, 971539), (283, 72093), (849, 24031), (1981, 10299), (3433, 5943)]