20887592

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2447}}^1$

素因数の和:2561

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 22295128

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2447, 4268, 4894, 8536, 9788, 19576, 26917, 53834, 107668, 215336, 237359, 474718, 949436, 1898872, 2610949, 5221898, 10443796, 20887592]

約数ペア:

[(1, 20887592), (2, 10443796), (4, 5221898), (8, 2610949), (11, 1898872), (22, 949436), (44, 474718), (88, 237359), (97, 215336), (194, 107668), (388, 53834), (776, 26917), (1067, 19576), (2134, 9788), (2447, 8536), (4268, 4894)]