18443908

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{937}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 39921280

約数和(自身を除く): 21477372

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 133, 148, 259, 266, 518, 532, 703, 937, 1036, 1406, 1874, 2812, 3748, 4921, 6559, 9842, 13118, 17803, 19684, 26236, 34669, 35606, 69338, 71212, 124621, 138676, 242683, 249242, 485366, 498484, 658711, 970732, 1317422, 2634844, 4610977, 9221954, 18443908]

約数ペア:

[(1, 18443908), (2, 9221954), (4, 4610977), (7, 2634844), (14, 1317422), (19, 970732), (28, 658711), (37, 498484), (38, 485366), (74, 249242), (76, 242683), (133, 138676), (148, 124621), (259, 71212), (266, 69338), (518, 35606), (532, 34669), (703, 26236), (937, 19684), (1036, 17803), (1406, 13118), (1874, 9842), (2812, 6559), (3748, 4921)]