21332456

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{10139}}^1$

素因数の和:10408

約数の個数: 16

約数和(自身を含む): 40154400

約数和(自身を除く): 18821944

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 10139, 20278, 40556, 81112, 2666557, 5333114, 10666228, 21332456]

約数ペア:

[(1, 21332456), (2, 10666228), (4, 5333114), (8, 2666557), (263, 81112), (526, 40556), (1052, 20278), (2104, 10139)]