21182901

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{1327}}^1$

素因数の和:1660

約数の個数: 16

約数和(自身を含む): 30023424

約数和(自身を除く): 8840523

約数列:

[1, 3, 17, 51, 313, 939, 1327, 3981, 5321, 15963, 22559, 67677, 415351, 1246053, 7060967, 21182901]

約数ペア:

[(1, 21182901), (3, 7060967), (17, 1246053), (51, 415351), (313, 67677), (939, 22559), (1327, 15963), (3981, 5321)]