19866968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3701}}^1$

素因数の和:3779

約数の個数: 32

約数和(自身を含む): 41314320

約数和(自身を除く): 21447352

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3701, 5368, 7402, 14804, 29608, 40711, 81422, 162844, 225761, 325688, 451522, 903044, 1806088, 2483371, 4966742, 9933484, 19866968]

約数ペア:

[(1, 19866968), (2, 9933484), (4, 4966742), (8, 2483371), (11, 1806088), (22, 903044), (44, 451522), (61, 325688), (88, 225761), (122, 162844), (244, 81422), (488, 40711), (671, 29608), (1342, 14804), (2684, 7402), (3701, 5368)]