20946904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2311}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 43280640

約数和(自身を除く): 22333736

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 103, 206, 412, 824, 1133, 2266, 2311, 4532, 4622, 9064, 9244, 18488, 25421, 50842, 101684, 203368, 238033, 476066, 952132, 1904264, 2618363, 5236726, 10473452, 20946904]

約数ペア:

[(1, 20946904), (2, 10473452), (4, 5236726), (8, 2618363), (11, 1904264), (22, 952132), (44, 476066), (88, 238033), (103, 203368), (206, 101684), (412, 50842), (824, 25421), (1133, 18488), (2266, 9244), (2311, 9064), (4532, 4622)]