19663497

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2917}}^1$

素因数の和:3037

約数の個数: 24

約数和(自身を含む): 32774976

約数和(自身を除く): 13111479

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 2917, 6741, 8751, 20419, 26253, 61257, 183771, 312119, 936357, 2184833, 2809071, 6554499, 19663497]

約数ペア:

[(1, 19663497), (3, 6554499), (7, 2809071), (9, 2184833), (21, 936357), (63, 312119), (107, 183771), (321, 61257), (749, 26253), (963, 20419), (2247, 8751), (2917, 6741)]