21527835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{487}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 39539712

約数和(自身を除く): 18011877

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 421, 487, 1263, 1461, 2105, 2435, 2947, 3409, 6315, 7305, 8841, 10227, 14735, 17045, 44205, 51135, 205027, 615081, 1025135, 1435189, 3075405, 4305567, 7175945, 21527835]

約数ペア:

[(1, 21527835), (3, 7175945), (5, 4305567), (7, 3075405), (15, 1435189), (21, 1025135), (35, 615081), (105, 205027), (421, 51135), (487, 44205), (1263, 17045), (1461, 14735), (2105, 10227), (2435, 8841), (2947, 7305), (3409, 6315)]