20061951

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1775

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 13645569

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 1709, 3913, 5127, 11739, 11963, 22217, 35889, 66651, 73487, 155519, 220461, 466557, 514409, 955331, 1543227, 2865993, 6687317, 20061951]

約数ペア:

[(1, 20061951), (3, 6687317), (7, 2865993), (13, 1543227), (21, 955331), (39, 514409), (43, 466557), (91, 220461), (129, 155519), (273, 73487), (301, 66651), (559, 35889), (903, 22217), (1677, 11963), (1709, 11739), (3913, 5127)]