20117276

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1187}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 37255680

約数和(自身を除く): 17138404

約数列:

[1, 2, 4, 19, 38, 76, 223, 446, 892, 1187, 2374, 4237, 4748, 8474, 16948, 22553, 45106, 90212, 264701, 529402, 1058804, 5029319, 10058638, 20117276]

約数ペア:

[(1, 20117276), (2, 10058638), (4, 5029319), (19, 1058804), (38, 529402), (76, 264701), (223, 90212), (446, 45106), (892, 22553), (1187, 16948), (2374, 8474), (4237, 4748)]