20959532

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21376468

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 139, 149, 253, 278, 298, 506, 556, 596, 1012, 1529, 1639, 3058, 3197, 3278, 3427, 6116, 6394, 6556, 6854, 12788, 13708, 20711, 35167, 37697, 41422, 70334, 75394, 82844, 140668, 150788, 227821, 455642, 476353, 911284, 952706, 1905412, 5239883, 10479766, 20959532]

約数ペア:

[(1, 20959532), (2, 10479766), (4, 5239883), (11, 1905412), (22, 952706), (23, 911284), (44, 476353), (46, 455642), (92, 227821), (139, 150788), (149, 140668), (253, 82844), (278, 75394), (298, 70334), (506, 41422), (556, 37697), (596, 35167), (1012, 20711), (1529, 13708), (1639, 12788), (3058, 6854), (3197, 6556), (3278, 6394), (3427, 6116)]