21665798

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{523}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 40746240

約数和(自身を除く): 19080442

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 269, 523, 538, 1046, 1883, 2959, 3661, 3766, 5753, 5918, 7322, 11506, 20713, 40271, 41426, 80542, 140687, 281374, 984809, 1547557, 1969618, 3095114, 10832899, 21665798]

約数ペア:

[(1, 21665798), (2, 10832899), (7, 3095114), (11, 1969618), (14, 1547557), (22, 984809), (77, 281374), (154, 140687), (269, 80542), (523, 41426), (538, 40271), (1046, 20713), (1883, 11506), (2959, 7322), (3661, 5918), (3766, 5753)]