21878216

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{27077}}^1$

素因数の和:27184

約数の個数: 16

約数和(自身を含む): 41429340

約数和(自身を除く): 19551124

約数列:

[1, 2, 4, 8, 101, 202, 404, 808, 27077, 54154, 108308, 216616, 2734777, 5469554, 10939108, 21878216]

約数ペア:

[(1, 21878216), (2, 10939108), (4, 5469554), (8, 2734777), (101, 216616), (202, 108308), (404, 54154), (808, 27077)]