20687788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 42255360

約数和(自身を除く): 21567572

約数列:

[1, 2, 4, 11, 22, 29, 31, 44, 58, 62, 116, 124, 319, 341, 523, 638, 682, 899, 1046, 1276, 1364, 1798, 2092, 3596, 5753, 9889, 11506, 15167, 16213, 19778, 23012, 30334, 32426, 39556, 60668, 64852, 166837, 178343, 333674, 356686, 470177, 667348, 713372, 940354, 1880708, 5171947, 10343894, 20687788]

約数ペア:

[(1, 20687788), (2, 10343894), (4, 5171947), (11, 1880708), (22, 940354), (29, 713372), (31, 667348), (44, 470177), (58, 356686), (62, 333674), (116, 178343), (124, 166837), (319, 64852), (341, 60668), (523, 39556), (638, 32426), (682, 30334), (899, 23012), (1046, 19778), (1276, 16213), (1364, 15167), (1798, 11506), (2092, 9889), (3596, 5753)]