20195956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4211}}^1$

素因数の和:4335

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 18722924

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4211, 4796, 8422, 16844, 46321, 92642, 185284, 458999, 917998, 1835996, 5048989, 10097978, 20195956]

約数ペア:

[(1, 20195956), (2, 10097978), (4, 5048989), (11, 1835996), (22, 917998), (44, 458999), (109, 185284), (218, 92642), (436, 46321), (1199, 16844), (2398, 8422), (4211, 4796)]