1261221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 1839936

約数和(自身を除く): 578715

約数列:

[1, 3, 13, 39, 73, 219, 443, 949, 1329, 2847, 5759, 17277, 32339, 97017, 420407, 1261221]

約数ペア:

[(1, 1261221), (3, 420407), (13, 97017), (39, 32339), (73, 17277), (219, 5759), (443, 2847), (949, 1329)]