21909412

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4523}}^1$

素因数の和:4707

約数の個数: 24

約数和(自身を含む): 44081856

約数和(自身を除く): 22172444

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4523, 4844, 9046, 18092, 31661, 63322, 126644, 782479, 1564958, 3129916, 5477353, 10954706, 21909412]

約数ペア:

[(1, 21909412), (2, 10954706), (4, 5477353), (7, 3129916), (14, 1564958), (28, 782479), (173, 126644), (346, 63322), (692, 31661), (1211, 18092), (2422, 9046), (4523, 4844)]