866271

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 1378944

約数和(自身を除く): 512673

約数列:

[1, 3, 7, 21, 49, 71, 83, 147, 213, 249, 497, 581, 1491, 1743, 3479, 4067, 5893, 10437, 12201, 17679, 41251, 123753, 288757, 866271]

約数ペア:

[(1, 866271), (3, 288757), (7, 123753), (21, 41251), (49, 17679), (71, 12201), (83, 10437), (147, 5893), (213, 4067), (249, 3479), (497, 1743), (581, 1491)]