21157544

素因数分解:

$2^3\times {\mathrm{1409}}^1\times {\mathrm{1877}}^1$

素因数の和:3292

約数の個数: 16

約数和(自身を含む): 39719700

約数和(自身を除く): 18562156

約数列:

[1, 2, 4, 8, 1409, 1877, 2818, 3754, 5636, 7508, 11272, 15016, 2644693, 5289386, 10578772, 21157544]

約数ペア:

[(1, 21157544), (2, 10578772), (4, 5289386), (8, 2644693), (1409, 15016), (1877, 11272), (2818, 7508), (3754, 5636)]