18945939

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1381}}^1$

素因数の和:1670

約数の個数: 16

約数和(自身を含む): 26866080

約数和(自身を除く): 7920141

約数列:

[1, 3, 17, 51, 269, 807, 1381, 4143, 4573, 13719, 23477, 70431, 371489, 1114467, 6315313, 18945939]

約数ペア:

[(1, 18945939), (3, 6315313), (17, 1114467), (51, 371489), (269, 70431), (807, 23477), (1381, 13719), (4143, 4573)]