21769665

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20441}}^1$

素因数の和:20520

約数の個数: 16

約数和(自身を含む): 35323776

約数和(自身を除く): 13554111

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 20441, 61323, 102205, 306615, 1451311, 4353933, 7256555, 21769665]

約数ペア:

[(1, 21769665), (3, 7256555), (5, 4353933), (15, 1451311), (71, 306615), (213, 102205), (355, 61323), (1065, 20441)]