20522084

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:524

約数の個数: 36

約数和(自身を含む): 39939900

約数和(自身を除く): 19417816

約数列:

[1, 2, 4, 11, 22, 44, 109, 121, 218, 242, 389, 436, 484, 778, 1199, 1556, 2398, 4279, 4796, 8558, 13189, 17116, 26378, 42401, 47069, 52756, 84802, 94138, 169604, 188276, 466411, 932822, 1865644, 5130521, 10261042, 20522084]

約数ペア:

[(1, 20522084), (2, 10261042), (4, 5130521), (11, 1865644), (22, 932822), (44, 466411), (109, 188276), (121, 169604), (218, 94138), (242, 84802), (389, 52756), (436, 47069), (484, 42401), (778, 26378), (1199, 17116), (1556, 13189), (2398, 8558), (4279, 4796)]