20601854

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 39338208

約数和(自身を除く): 18736354

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 103, 157, 182, 206, 314, 637, 721, 1099, 1274, 1339, 1442, 2041, 2198, 2678, 4082, 5047, 7693, 9373, 10094, 14287, 15386, 16171, 18746, 28574, 32342, 65611, 100009, 113197, 131222, 200018, 210223, 226394, 420446, 792379, 1471561, 1584758, 2943122, 10300927, 20601854]

約数ペア:

[(1, 20601854), (2, 10300927), (7, 2943122), (13, 1584758), (14, 1471561), (26, 792379), (49, 420446), (91, 226394), (98, 210223), (103, 200018), (157, 131222), (182, 113197), (206, 100009), (314, 65611), (637, 32342), (721, 28574), (1099, 18746), (1274, 16171), (1339, 15386), (1442, 14287), (2041, 10094), (2198, 9373), (2678, 7693), (4082, 5047)]