21000539936

素因数分解:

$2^5\times {\mathrm{109}}^1\times {\mathrm{347}}^1\times {\mathrm{17351}}^1$

素因数の和:17817

約数の個数: 48

約数和(自身を含む): 41846777280

約数和(自身を除く): 20846237344

約数列:

[1, 2, 4, 8, 16, 32, 109, 218, 347, 436, 694, 872, 1388, 1744, 2776, 3488, 5552, 11104, 17351, 34702, 37823, 69404, 75646, 138808, 151292, 277616, 302584, 555232, 605168, 1210336, 1891259, 3782518, 6020797, 7565036, 12041594, 15130072, 24083188, 30260144, 48166376, 60520288, 96332752, 192665504, 656266873, 1312533746, 2625067492, 5250134984, 10500269968, 21000539936]

約数ペア:

[(1, 21000539936), (2, 10500269968), (4, 5250134984), (8, 2625067492), (16, 1312533746), (32, 656266873), (109, 192665504), (218, 96332752), (347, 60520288), (436, 48166376), (694, 30260144), (872, 24083188), (1388, 15130072), (1744, 12041594), (2776, 7565036), (3488, 6020797), (5552, 3782518), (11104, 1891259), (17351, 1210336), (34702, 605168), (37823, 555232), (69404, 302584), (75646, 277616), (138808, 151292)]