20997064

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{887}}^1$

素因数の和:1173

約数の個数: 32

約数和(自身を含む): 43156800

約数和(自身を除く): 22159736

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 269, 538, 887, 1076, 1774, 2152, 2959, 3548, 5918, 7096, 9757, 11836, 19514, 23672, 39028, 78056, 238603, 477206, 954412, 1908824, 2624633, 5249266, 10498532, 20997064]

約数ペア:

[(1, 20997064), (2, 10498532), (4, 5249266), (8, 2624633), (11, 1908824), (22, 954412), (44, 477206), (88, 238603), (269, 78056), (538, 39028), (887, 23672), (1076, 19514), (1774, 11836), (2152, 9757), (2959, 7096), (3548, 5918)]