31997286

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{25037}}^1$

素因数の和:25116

約数の個数: 24

約数和(自身を含む): 70306704

約数和(自身を除く): 38309418

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 25037, 50074, 75111, 150222, 225333, 450666, 1777627, 3555254, 5332881, 10665762, 15998643, 31997286]

約数ペア:

[(1, 31997286), (2, 15998643), (3, 10665762), (6, 5332881), (9, 3555254), (18, 1777627), (71, 450666), (142, 225333), (213, 150222), (426, 75111), (639, 50074), (1278, 25037)]