19876208

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3643}}^1$

素因数の和:3693

約数の個数: 40

約数和(自身を含む): 43378176

約数和(自身を除く): 23501968

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 3643, 5456, 7286, 14572, 29144, 40073, 58288, 80146, 112933, 160292, 225866, 320584, 451732, 641168, 903464, 1242263, 1806928, 2484526, 4969052, 9938104, 19876208]

約数ペア:

[(1, 19876208), (2, 9938104), (4, 4969052), (8, 2484526), (11, 1806928), (16, 1242263), (22, 903464), (31, 641168), (44, 451732), (62, 320584), (88, 225866), (124, 160292), (176, 112933), (248, 80146), (341, 58288), (496, 40073), (682, 29144), (1364, 14572), (2728, 7286), (3643, 5456)]