1900805583

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{640649}}^1$

素因数の和:640718

約数の個数: 16

約数和(自身を含む): 2706105600

約数和(自身を除く): 805300017

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 640649, 1921947, 14734927, 27547907, 44204781, 82643721, 633601861, 1900805583]

約数ペア:

[(1, 1900805583), (3, 633601861), (23, 82643721), (43, 44204781), (69, 27547907), (129, 14734927), (989, 1921947), (2967, 640649)]