19779809

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{1019}}^1$

素因数の和:1132

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 3720991

約数列:

[1, 7, 47, 59, 329, 413, 1019, 2773, 7133, 19411, 47893, 60121, 335251, 420847, 2825687, 19779809]

約数ペア:

[(1, 19779809), (7, 2825687), (47, 420847), (59, 335251), (329, 60121), (413, 47893), (1019, 19411), (2773, 7133)]