19945972

素因数分解:

$2^2\times {\mathrm{19}}^3\times {\mathrm{727}}^1$

素因数の和:788

約数の個数: 24

約数和(自身を含む): 36895040

約数和(自身を除く): 16949068

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 727, 1444, 1454, 2908, 6859, 13718, 13813, 27436, 27626, 55252, 262447, 524894, 1049788, 4986493, 9972986, 19945972]

約数ペア:

[(1, 19945972), (2, 9972986), (4, 4986493), (19, 1049788), (38, 524894), (76, 262447), (361, 55252), (722, 27626), (727, 27436), (1444, 13813), (1454, 13718), (2908, 6859)]