21927128

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66851}}^1$

素因数の和:66898

約数の個数: 16

約数和(自身を含む): 42116760

約数和(自身を除く): 20189632

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66851, 133702, 267404, 534808, 2740891, 5481782, 10963564, 21927128]

約数ペア:

[(1, 21927128), (2, 10963564), (4, 5481782), (8, 2740891), (41, 534808), (82, 267404), (164, 133702), (328, 66851)]