842643

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:216

約数の個数: 20

約数和(自身を含む): 1283568

約数和(自身を除く): 440925

約数列:

[1, 3, 9, 27, 81, 101, 103, 303, 309, 909, 927, 2727, 2781, 8181, 8343, 10403, 31209, 93627, 280881, 842643]

約数ペア:

[(1, 842643), (3, 280881), (9, 93627), (27, 31209), (81, 10403), (101, 8343), (103, 8181), (303, 2781), (309, 2727), (909, 927)]