20645812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{887}}^1$

素因数の和:948

約数の個数: 36

約数和(自身を含む): 41249376

約数和(自身を除く): 20603564

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 529, 887, 1012, 1058, 1774, 2116, 3548, 5819, 9757, 11638, 19514, 20401, 23276, 39028, 40802, 81604, 224411, 448822, 469223, 897644, 938446, 1876892, 5161453, 10322906, 20645812]

約数ペア:

[(1, 20645812), (2, 10322906), (4, 5161453), (11, 1876892), (22, 938446), (23, 897644), (44, 469223), (46, 448822), (92, 224411), (253, 81604), (506, 40802), (529, 39028), (887, 23276), (1012, 20401), (1058, 19514), (1774, 11638), (2116, 9757), (3548, 5819)]