20402888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4933}}^1$

素因数の和:4997

約数の個数: 32

約数和(自身を含む): 42629760

約数和(自身を除く): 22226872

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 4933, 9866, 19732, 39464, 54263, 108526, 217052, 231851, 434104, 463702, 927404, 1854808, 2550361, 5100722, 10201444, 20402888]

約数ペア:

[(1, 20402888), (2, 10201444), (4, 5100722), (8, 2550361), (11, 1854808), (22, 927404), (44, 463702), (47, 434104), (88, 231851), (94, 217052), (188, 108526), (376, 54263), (517, 39464), (1034, 19732), (2068, 9866), (4136, 4933)]