19980459818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{2029}}^1\times {\mathrm{447611}}^1$

素因数の和:449653

約数の個数: 16

約数和(自身を含む): 32711484960

約数和(自身を除く): 12731025142

約数列:

[1, 2, 11, 22, 2029, 4058, 22319, 44638, 447611, 895222, 4923721, 9847442, 908202719, 1816405438, 9990229909, 19980459818]

約数ペア:

[(1, 19980459818), (2, 9990229909), (11, 1816405438), (22, 908202719), (2029, 9847442), (4058, 4923721), (22319, 895222), (44638, 447611)]