20988772

素因数分解:

$2^2\times 7^1\times {\mathrm{587}}^1\times {\mathrm{1277}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 42081984

約数和(自身を除く): 21093212

約数列:

[1, 2, 4, 7, 14, 28, 587, 1174, 1277, 2348, 2554, 4109, 5108, 8218, 8939, 16436, 17878, 35756, 749599, 1499198, 2998396, 5247193, 10494386, 20988772]

約数ペア:

[(1, 20988772), (2, 10494386), (4, 5247193), (7, 2998396), (14, 1499198), (28, 749599), (587, 35756), (1174, 17878), (1277, 16436), (2348, 8939), (2554, 8218), (4109, 5108)]