138891123

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{31051}}^1$

素因数の和:31135

約数の個数: 24

約数和(自身を含む): 232517376

約数和(自身を除く): 93626253

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 31051, 93153, 217357, 279459, 652071, 1956213, 2204621, 6613863, 15432347, 19841589, 46297041, 138891123]

約数ペア:

[(1, 138891123), (3, 46297041), (7, 19841589), (9, 15432347), (21, 6613863), (63, 2204621), (71, 1956213), (213, 652071), (497, 279459), (639, 217357), (1491, 93153), (4473, 31051)]