121681567

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 152729600

約数和(自身を除く): 31048033

約数列:

[1, 7, 19, 37, 79, 133, 259, 313, 553, 703, 1501, 2191, 2923, 4921, 5947, 10507, 11581, 20461, 24727, 41629, 55537, 81067, 173089, 220039, 388759, 469813, 914899, 1540273, 3288691, 6404293, 17383081, 121681567]

約数ペア:

[(1, 121681567), (7, 17383081), (19, 6404293), (37, 3288691), (79, 1540273), (133, 914899), (259, 469813), (313, 388759), (553, 220039), (703, 173089), (1501, 81067), (2191, 55537), (2923, 41629), (4921, 24727), (5947, 20461), (10507, 11581)]