21937870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53507}}^1$

素因数の和:53555

約数の個数: 16

約数和(自身を含む): 40452048

約数和(自身を除く): 18514178

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53507, 107014, 267535, 535070, 2193787, 4387574, 10968935, 21937870]

約数ペア:

[(1, 21937870), (2, 10968935), (5, 4387574), (10, 2193787), (41, 535070), (82, 267535), (205, 107014), (410, 53507)]