21135564

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8269}}^1$

素因数の和:8350

約数の個数: 36

約数和(自身を含む): 54185040

約数和(自身を除く): 33049476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8269, 16538, 24807, 33076, 49614, 74421, 99228, 148842, 297684, 587099, 1174198, 1761297, 2348396, 3522594, 5283891, 7045188, 10567782, 21135564]

約数ペア:

[(1, 21135564), (2, 10567782), (3, 7045188), (4, 5283891), (6, 3522594), (9, 2348396), (12, 1761297), (18, 1174198), (36, 587099), (71, 297684), (142, 148842), (213, 99228), (284, 74421), (426, 49614), (639, 33076), (852, 24807), (1278, 16538), (2556, 8269)]