19810216

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{60397}}^1$

素因数の和:60444

約数の個数: 16

約数和(自身を含む): 38050740

約数和(自身を除く): 18240524

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 60397, 120794, 241588, 483176, 2476277, 4952554, 9905108, 19810216]

約数ペア:

[(1, 19810216), (2, 9905108), (4, 4952554), (8, 2476277), (41, 483176), (82, 241588), (164, 120794), (328, 60397)]