20325357

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{733}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 32883200

約数和(自身を除く): 12557843

約数列:

[1, 3, 9, 13, 27, 39, 79, 117, 237, 351, 711, 733, 1027, 2133, 2199, 3081, 6597, 9243, 9529, 19791, 27729, 28587, 57907, 85761, 173721, 257283, 521163, 752791, 1563489, 2258373, 6775119, 20325357]

約数ペア:

[(1, 20325357), (3, 6775119), (9, 2258373), (13, 1563489), (27, 752791), (39, 521163), (79, 257283), (117, 173721), (237, 85761), (351, 57907), (711, 28587), (733, 27729), (1027, 19791), (2133, 9529), (2199, 9243), (3081, 6597)]