18521978

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{1093}}^1$

素因数の和:1361

約数の個数: 16

約数和(自身を含む): 28684680

約数和(自身を除く): 10162702

約数列:

[1, 2, 37, 74, 229, 458, 1093, 2186, 8473, 16946, 40441, 80882, 250297, 500594, 9260989, 18521978]

約数ペア:

[(1, 18521978), (2, 9260989), (37, 500594), (74, 250297), (229, 80882), (458, 40441), (1093, 16946), (2186, 8473)]