21226231

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 24507360

約数和(自身を除く): 3281129

約数列:

[1, 13, 29, 61, 71, 169, 377, 793, 923, 1769, 2059, 4331, 4901, 10309, 11999, 22997, 26767, 56303, 125599, 298961, 347971, 731939, 1632787, 21226231]

約数ペア:

[(1, 21226231), (13, 1632787), (29, 731939), (61, 347971), (71, 298961), (169, 125599), (377, 56303), (793, 26767), (923, 22997), (1769, 11999), (2059, 10309), (4331, 4901)]