20651576

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2153}}^1$

素因数の和:2279

約数の個数: 32

約数和(自身を含む): 42649200

約数和(自身を除く): 21997624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 109, 218, 436, 872, 1199, 2153, 2398, 4306, 4796, 8612, 9592, 17224, 23683, 47366, 94732, 189464, 234677, 469354, 938708, 1877416, 2581447, 5162894, 10325788, 20651576]

約数ペア:

[(1, 20651576), (2, 10325788), (4, 5162894), (8, 2581447), (11, 1877416), (22, 938708), (44, 469354), (88, 234677), (109, 189464), (218, 94732), (436, 47366), (872, 23683), (1199, 17224), (2153, 9592), (2398, 8612), (4306, 4796)]