20189048

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3761}}^1$

素因数の和:3839

約数の個数: 32

約数和(自身を含む): 41983920

約数和(自身を除く): 21794872

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3761, 5368, 7522, 15044, 30088, 41371, 82742, 165484, 229421, 330968, 458842, 917684, 1835368, 2523631, 5047262, 10094524, 20189048]

約数ペア:

[(1, 20189048), (2, 10094524), (4, 5047262), (8, 2523631), (11, 1835368), (22, 917684), (44, 458842), (61, 330968), (88, 229421), (122, 165484), (244, 82742), (488, 41371), (671, 30088), (1342, 15044), (2684, 7522), (3761, 5368)]