21025358

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 34283520

約数和(自身を除く): 13258162

約数列:

[1, 2, 23, 46, 59, 61, 118, 122, 127, 254, 1357, 1403, 2714, 2806, 2921, 3599, 5842, 7198, 7493, 7747, 14986, 15494, 82777, 165554, 172339, 178181, 344678, 356362, 457073, 914146, 10512679, 21025358]

約数ペア:

[(1, 21025358), (2, 10512679), (23, 914146), (46, 457073), (59, 356362), (61, 344678), (118, 178181), (122, 172339), (127, 165554), (254, 82777), (1357, 15494), (1403, 14986), (2714, 7747), (2806, 7493), (2921, 7198), (3599, 5842)]