121291261

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 154542080

約数和(自身を除く): 33250819

約数列:

[1, 7, 13, 43, 91, 139, 223, 301, 559, 973, 1561, 1807, 2899, 3913, 5977, 9589, 12649, 20293, 30997, 41839, 67123, 77701, 124657, 216979, 402961, 543907, 872599, 1332871, 2820727, 9330097, 17327323, 121291261]

約数ペア:

[(1, 121291261), (7, 17327323), (13, 9330097), (43, 2820727), (91, 1332871), (139, 872599), (223, 543907), (301, 402961), (559, 216979), (973, 124657), (1561, 77701), (1807, 67123), (2899, 41839), (3913, 30997), (5977, 20293), (9589, 12649)]