257788443

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{17321}}^1$

素因数の和:17387

約数の個数: 24

約数和(自身を含む): 387042768

約数和(自身を除く): 129254325

約数列:

[1, 3, 11, 33, 41, 121, 123, 363, 451, 1353, 4961, 14883, 17321, 51963, 190531, 571593, 710161, 2095841, 2130483, 6287523, 7811771, 23435313, 85929481, 257788443]

約数ペア:

[(1, 257788443), (3, 85929481), (11, 23435313), (33, 7811771), (41, 6287523), (121, 2130483), (123, 2095841), (363, 710161), (451, 571593), (1353, 190531), (4961, 51963), (14883, 17321)]