19785832

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1489}}^1$

素因数の和:1657

約数の個数: 32

約数和(自身を含む): 40766400

約数和(自身を除く): 20980568

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 151, 302, 604, 1208, 1489, 1661, 2978, 3322, 5956, 6644, 11912, 13288, 16379, 32758, 65516, 131032, 224839, 449678, 899356, 1798712, 2473229, 4946458, 9892916, 19785832]

約数ペア:

[(1, 19785832), (2, 9892916), (4, 4946458), (8, 2473229), (11, 1798712), (22, 899356), (44, 449678), (88, 224839), (151, 131032), (302, 65516), (604, 32758), (1208, 16379), (1489, 13288), (1661, 11912), (2978, 6644), (3322, 5956)]