71017639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 91998720

約数和(自身を除く): 20981081

約数列:

[1, 7, 11, 43, 77, 89, 241, 301, 473, 623, 979, 1687, 2651, 3311, 3827, 6853, 10363, 18557, 21449, 26789, 42097, 72541, 113993, 150143, 235939, 294679, 797951, 922307, 1651573, 6456149, 10145377, 71017639]

約数ペア:

[(1, 71017639), (7, 10145377), (11, 6456149), (43, 1651573), (77, 922307), (89, 797951), (241, 294679), (301, 235939), (473, 150143), (623, 113993), (979, 72541), (1687, 42097), (2651, 26789), (3311, 21449), (3827, 18557), (6853, 10363)]