28138578

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5081}}^1$

素因数の和:5170

約数の個数: 32

約数和(自身を含む): 61471872

約数和(自身を除く): 33333294

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 5081, 5538, 10162, 15243, 30486, 66053, 132106, 198159, 360751, 396318, 721502, 1082253, 2164506, 4689763, 9379526, 14069289, 28138578]

約数ペア:

[(1, 28138578), (2, 14069289), (3, 9379526), (6, 4689763), (13, 2164506), (26, 1082253), (39, 721502), (71, 396318), (78, 360751), (142, 198159), (213, 132106), (426, 66053), (923, 30486), (1846, 15243), (2769, 10162), (5081, 5538)]