689301

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 1092000

約数和(自身を除く): 402699

約数列:

[1, 3, 9, 19, 29, 57, 87, 139, 171, 261, 417, 551, 1251, 1653, 2641, 4031, 4959, 7923, 12093, 23769, 36279, 76589, 229767, 689301]

約数ペア:

[(1, 689301), (3, 229767), (9, 76589), (19, 36279), (29, 23769), (57, 12093), (87, 7923), (139, 4959), (171, 4031), (261, 2641), (417, 1653), (551, 1251)]