20557924

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1213}}^1$

素因数の和:1459

約数の個数: 24

約数和(自身を含む): 38071040

約数和(自身を除く): 17513116

約数列:

[1, 2, 4, 19, 38, 76, 223, 446, 892, 1213, 2426, 4237, 4852, 8474, 16948, 23047, 46094, 92188, 270499, 540998, 1081996, 5139481, 10278962, 20557924]

約数ペア:

[(1, 20557924), (2, 10278962), (4, 5139481), (19, 1081996), (38, 540998), (76, 270499), (223, 92188), (446, 46094), (892, 23047), (1213, 16948), (2426, 8474), (4237, 4852)]