21744628

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{941}}^1$

素因数の和:1107

約数の個数: 24

約数和(自身を含む): 39168360

約数和(自身を除く): 17423732

約数列:

[1, 2, 4, 53, 106, 109, 212, 218, 436, 941, 1882, 3764, 5777, 11554, 23108, 49873, 99746, 102569, 199492, 205138, 410276, 5436157, 10872314, 21744628]

約数ペア:

[(1, 21744628), (2, 10872314), (4, 5436157), (53, 410276), (106, 205138), (109, 199492), (212, 102569), (218, 99746), (436, 49873), (941, 23108), (1882, 11554), (3764, 5777)]