21903676

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{133559}}^1$

素因数の和:133604

約数の個数: 12

約数和(自身を含む): 39266640

約数和(自身を除く): 17362964

約数列:

[1, 2, 4, 41, 82, 164, 133559, 267118, 534236, 5475919, 10951838, 21903676]

約数ペア:

[(1, 21903676), (2, 10951838), (4, 5475919), (41, 534236), (82, 267118), (164, 133559)]