78817557

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2803}}^1$

素因数の和:2929

約数の個数: 32

約数和(自身を含む): 130643968

約数和(自身を除く): 51826411

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 721, 1339, 2163, 2803, 4017, 8409, 9373, 19621, 28119, 36439, 58863, 109317, 255073, 288709, 765219, 866127, 2020963, 3753217, 6062889, 11259651, 26272519, 78817557]

約数ペア:

[(1, 78817557), (3, 26272519), (7, 11259651), (13, 6062889), (21, 3753217), (39, 2020963), (91, 866127), (103, 765219), (273, 288709), (309, 255073), (721, 109317), (1339, 58863), (2163, 36439), (2803, 28119), (4017, 19621), (8409, 9373)]