19989508

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{64901}}^1$

素因数の和:64923

約数の個数: 24

約数和(自身を含む): 43614144

約数和(自身を除く): 23624636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 64901, 129802, 259604, 454307, 713911, 908614, 1427822, 1817228, 2855644, 4997377, 9994754, 19989508]

約数ペア:

[(1, 19989508), (2, 9994754), (4, 4997377), (7, 2855644), (11, 1817228), (14, 1427822), (22, 908614), (28, 713911), (44, 454307), (77, 259604), (154, 129802), (308, 64901)]