20811828

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 50694336

約数和(自身を除く): 29882508

約数列:

[1, 2, 3, 4, 6, 12, 43, 53, 86, 106, 129, 159, 172, 212, 258, 318, 516, 636, 761, 1522, 2279, 2283, 3044, 4558, 4566, 6837, 9116, 9132, 13674, 27348, 32723, 40333, 65446, 80666, 98169, 120999, 130892, 161332, 196338, 241998, 392676, 483996, 1734319, 3468638, 5202957, 6937276, 10405914, 20811828]

約数ペア:

[(1, 20811828), (2, 10405914), (3, 6937276), (4, 5202957), (6, 3468638), (12, 1734319), (43, 483996), (53, 392676), (86, 241998), (106, 196338), (129, 161332), (159, 130892), (172, 120999), (212, 98169), (258, 80666), (318, 65446), (516, 40333), (636, 32723), (761, 27348), (1522, 13674), (2279, 9132), (2283, 9116), (3044, 6837), (4558, 4566)]