21881816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{248657}}^1$

素因数の和:248674

約数の個数: 16

約数和(自身を含む): 44758440

約数和(自身を除く): 22876624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 248657, 497314, 994628, 1989256, 2735227, 5470454, 10940908, 21881816]

約数ペア:

[(1, 21881816), (2, 10940908), (4, 5470454), (8, 2735227), (11, 1989256), (22, 994628), (44, 497314), (88, 248657)]