20266857

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2087}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 31921344

約数和(自身を除く): 11654487

約数列:

[1, 3, 9, 13, 39, 83, 117, 249, 747, 1079, 2087, 3237, 6261, 9711, 18783, 27131, 81393, 173221, 244179, 519663, 1558989, 2251873, 6755619, 20266857]

約数ペア:

[(1, 20266857), (3, 6755619), (9, 2251873), (13, 1558989), (39, 519663), (83, 244179), (117, 173221), (249, 81393), (747, 27131), (1079, 18783), (2087, 9711), (3237, 6261)]