21905222

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:911

約数の個数: 16

約数和(自身を含む): 33554400

約数和(自身を除く): 11649178

約数列:

[1, 2, 61, 122, 409, 439, 818, 878, 24949, 26779, 49898, 53558, 179551, 359102, 10952611, 21905222]

約数ペア:

[(1, 21905222), (2, 10952611), (61, 359102), (122, 179551), (409, 53558), (439, 49898), (818, 26779), (878, 24949)]