21108604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11701}}^1$

素因数の和:11757

約数の個数: 24

約数和(自身を含む): 41284656

約数和(自身を除く): 20176052

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11701, 23402, 46804, 128711, 257422, 479741, 514844, 959482, 1918964, 5277151, 10554302, 21108604]

約数ペア:

[(1, 21108604), (2, 10554302), (4, 5277151), (11, 1918964), (22, 959482), (41, 514844), (44, 479741), (82, 257422), (164, 128711), (451, 46804), (902, 23402), (1804, 11701)]