21348620

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1297}}^1$

素因数の和:2129

約数の個数: 24

約数和(自身を含む): 44921184

約数和(自身を除く): 23572564

約数列:

[1, 2, 4, 5, 10, 20, 823, 1297, 1646, 2594, 3292, 4115, 5188, 6485, 8230, 12970, 16460, 25940, 1067431, 2134862, 4269724, 5337155, 10674310, 21348620]

約数ペア:

[(1, 21348620), (2, 10674310), (4, 5337155), (5, 4269724), (10, 2134862), (20, 1067431), (823, 25940), (1297, 16460), (1646, 12970), (2594, 8230), (3292, 6485), (4115, 5188)]