20281569297

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1\times {\mathrm{6581}}^1$

素因数の和:8629

約数の個数: 32

約数和(自身を含む): 30147876864

約数和(自身を除く): 9866307567

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 1987, 5961, 6581, 19743, 21857, 65571, 72391, 93389, 217173, 280167, 309307, 927921, 1027279, 3081837, 3402377, 10207131, 13076447, 39229341, 143840917, 431522751, 614593009, 1843779027, 6760523099, 20281569297]

約数ペア:

[(1, 20281569297), (3, 6760523099), (11, 1843779027), (33, 614593009), (47, 431522751), (141, 143840917), (517, 39229341), (1551, 13076447), (1987, 10207131), (5961, 3402377), (6581, 3081837), (19743, 1027279), (21857, 927921), (65571, 309307), (72391, 280167), (93389, 217173)]