20018168

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61031}}^1$

素因数の和:61078

約数の個数: 16

約数和(自身を含む): 38450160

約数和(自身を除く): 18431992

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 61031, 122062, 244124, 488248, 2502271, 5004542, 10009084, 20018168]

約数ペア:

[(1, 20018168), (2, 10009084), (4, 5004542), (8, 2502271), (41, 488248), (82, 244124), (164, 122062), (328, 61031)]