20161218004

素因数分解:

$2^2\times {\mathrm{1217759}}^1\times {\mathrm{4139}}^1$

素因数の和:1221902

約数の個数: 12

約数和(自身を含む): 35290684800

約数和(自身を除く): 15129466796

約数列:

[1, 2, 4, 4139, 8278, 16556, 1217759, 2435518, 4871036, 5040304501, 10080609002, 20161218004]

約数ペア:

[(1, 20161218004), (2, 10080609002), (4, 5040304501), (4139, 4871036), (8278, 2435518), (16556, 1217759)]