21879404

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1499}}^1$

素因数の和:1633

約数の個数: 24

約数和(自身を含む): 39690000

約数和(自身を除く): 17810596

約数列:

[1, 2, 4, 41, 82, 89, 164, 178, 356, 1499, 2998, 3649, 5996, 7298, 14596, 61459, 122918, 133411, 245836, 266822, 533644, 5469851, 10939702, 21879404]

約数ペア:

[(1, 21879404), (2, 10939702), (4, 5469851), (41, 533644), (82, 266822), (89, 245836), (164, 133411), (178, 122918), (356, 61459), (1499, 14596), (2998, 7298), (3649, 5996)]