16821837

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{2141}}^1$

素因数の和:2250

約数の個数: 20

約数和(自身を含む): 25399836

約数和(自身を除く): 8577999

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2141, 2619, 6423, 7857, 19269, 57807, 173421, 207677, 623031, 1869093, 5607279, 16821837]

約数ペア:

[(1, 16821837), (3, 5607279), (9, 1869093), (27, 623031), (81, 207677), (97, 173421), (291, 57807), (873, 19269), (2141, 7857), (2619, 6423)]