20880195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{198859}}^1$

素因数の和:198874

約数の個数: 16

約数和(自身を含む): 38181120

約数和(自身を除く): 17300925

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 198859, 596577, 994295, 1392013, 2982885, 4176039, 6960065, 20880195]

約数ペア:

[(1, 20880195), (3, 6960065), (5, 4176039), (7, 2982885), (15, 1392013), (21, 994295), (35, 596577), (105, 198859)]