20631908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7687}}^1$

素因数の和:7763

約数の個数: 24

約数和(自身を含む): 40039104

約数和(自身を除く): 19407196

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 7687, 15374, 30748, 84557, 169114, 338228, 468907, 937814, 1875628, 5157977, 10315954, 20631908]

約数ペア:

[(1, 20631908), (2, 10315954), (4, 5157977), (11, 1875628), (22, 937814), (44, 468907), (61, 338228), (122, 169114), (244, 84557), (671, 30748), (1342, 15374), (2684, 7687)]