31890789

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9551}}^1$

素因数の和:9617

約数の個数: 24

約数和(自身を含む): 53644032

約数和(自身を除く): 21753243

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 9551, 28653, 66857, 85959, 200571, 506203, 601713, 1518609, 3543421, 4555827, 10630263, 31890789]

約数ペア:

[(1, 31890789), (3, 10630263), (7, 4555827), (9, 3543421), (21, 1518609), (53, 601713), (63, 506203), (159, 200571), (371, 85959), (477, 66857), (1113, 28653), (3339, 9551)]