20674719

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2129}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 32563440

約数和(自身を除く): 11888721

約数列:

[1, 3, 9, 13, 39, 83, 117, 249, 747, 1079, 2129, 3237, 6387, 9711, 19161, 27677, 83031, 176707, 249093, 530121, 1590363, 2297191, 6891573, 20674719]

約数ペア:

[(1, 20674719), (3, 6891573), (9, 2297191), (13, 1590363), (39, 530121), (83, 249093), (117, 176707), (249, 83031), (747, 27677), (1079, 19161), (2129, 9711), (3237, 6387)]