1900129107

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{640421}}^1$

素因数の和:640490

約数の個数: 16

約数和(自身を含む): 2705142528

約数和(自身を除く): 805013421

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 640421, 1921263, 14729683, 27538103, 44189049, 82614309, 633376369, 1900129107]

約数ペア:

[(1, 1900129107), (3, 633376369), (23, 82614309), (43, 44189049), (69, 27538103), (129, 14729683), (989, 1921263), (2967, 640421)]