21654868

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{2083}}^1$

素因数の和:2223

約数の個数: 24

約数和(自身を含む): 39912768

約数和(自身を除く): 18257900

約数列:

[1, 2, 4, 23, 46, 92, 113, 226, 452, 2083, 2599, 4166, 5198, 8332, 10396, 47909, 95818, 191636, 235379, 470758, 941516, 5413717, 10827434, 21654868]

約数ペア:

[(1, 21654868), (2, 10827434), (4, 5413717), (23, 941516), (46, 470758), (92, 235379), (113, 191636), (226, 95818), (452, 47909), (2083, 10396), (2599, 8332), (4166, 5198)]