20351888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{66947}}^1$

素因数の和:66974

約数の個数: 20

約数和(自身を含む): 41507760

約数和(自身を除く): 21155872

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 66947, 133894, 267788, 535576, 1071152, 1271993, 2543986, 5087972, 10175944, 20351888]

約数ペア:

[(1, 20351888), (2, 10175944), (4, 5087972), (8, 2543986), (16, 1271993), (19, 1071152), (38, 535576), (76, 267788), (152, 133894), (304, 66947)]