20938984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{859}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 43034400

約数和(自身を除く): 22095416

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 277, 554, 859, 1108, 1718, 2216, 3047, 3436, 6094, 6872, 9449, 12188, 18898, 24376, 37796, 75592, 237943, 475886, 951772, 1903544, 2617373, 5234746, 10469492, 20938984]

約数ペア:

[(1, 20938984), (2, 10469492), (4, 5234746), (8, 2617373), (11, 1903544), (22, 951772), (44, 475886), (88, 237943), (277, 75592), (554, 37796), (859, 24376), (1108, 18898), (1718, 12188), (2216, 9449), (3047, 6872), (3436, 6094)]