20687564968

素因数分解:

$2^3\times 7^1\times {\mathrm{369420803}}^1$

素因数の和:369420816

約数の個数: 16

約数和(自身を含む): 44330496480

約数和(自身を除く): 23642931512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 369420803, 738841606, 1477683212, 2585945621, 2955366424, 5171891242, 10343782484, 20687564968]

約数ペア:

[(1, 20687564968), (2, 10343782484), (4, 5171891242), (7, 2955366424), (8, 2585945621), (14, 1477683212), (28, 738841606), (56, 369420803)]