20761741

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2963}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 28383264

約数和(自身を除く): 7621523

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2963, 7007, 20741, 32593, 38519, 145187, 228151, 269633, 423709, 1597057, 1887431, 2965963, 20761741]

約数ペア:

[(1, 20761741), (7, 2965963), (11, 1887431), (13, 1597057), (49, 423709), (77, 269633), (91, 228151), (143, 145187), (539, 38519), (637, 32593), (1001, 20741), (2963, 7007)]