20931438

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{3821}}^1$

素因数の和:3920

約数の個数: 32

約数和(自身を含む): 46230912

約数和(自身を除く): 25299474

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 83, 166, 249, 498, 913, 1826, 2739, 3821, 5478, 7642, 11463, 22926, 42031, 84062, 126093, 252186, 317143, 634286, 951429, 1902858, 3488573, 6977146, 10465719, 20931438]

約数ペア:

[(1, 20931438), (2, 10465719), (3, 6977146), (6, 3488573), (11, 1902858), (22, 951429), (33, 634286), (66, 317143), (83, 252186), (166, 126093), (249, 84062), (498, 42031), (913, 22926), (1826, 11463), (2739, 7642), (3821, 5478)]