389670507

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{67757}}^1$

素因数の和:67840

約数の個数: 20

約数和(自身を含む): 590307696

約数和(自身を除く): 200637189

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 67757, 203271, 609813, 1829439, 4810747, 5488317, 14432241, 43296723, 129890169, 389670507]

約数ペア:

[(1, 389670507), (3, 129890169), (9, 43296723), (27, 14432241), (71, 5488317), (81, 4810747), (213, 1829439), (639, 609813), (1917, 203271), (5751, 67757)]