21122488

素因数分解:

$2^3\times {\mathrm{691}}^1\times {\mathrm{3821}}^1$

素因数の和:4518

約数の個数: 16

約数和(自身を含む): 39672360

約数和(自身を除く): 18549872

約数列:

[1, 2, 4, 8, 691, 1382, 2764, 3821, 5528, 7642, 15284, 30568, 2640311, 5280622, 10561244, 21122488]

約数ペア:

[(1, 21122488), (2, 10561244), (4, 5280622), (8, 2640311), (691, 30568), (1382, 15284), (2764, 7642), (3821, 5528)]