21182188

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2557}}^1$

素因数の和:2689

約数の個数: 24

約数和(自身を含む): 39393200

約数和(自身を除く): 18211012

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 2071, 2557, 4142, 5114, 8284, 10228, 48583, 97166, 194332, 278713, 557426, 1114852, 5295547, 10591094, 21182188]

約数ペア:

[(1, 21182188), (2, 10591094), (4, 5295547), (19, 1114852), (38, 557426), (76, 278713), (109, 194332), (218, 97166), (436, 48583), (2071, 10228), (2557, 8284), (4142, 5114)]