21349221

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{1117}}^1$

素因数の和:1420

約数の個数: 16

約数和(自身を含む): 29837184

約数和(自身を除く): 8487963

約数列:

[1, 3, 23, 69, 277, 831, 1117, 3351, 6371, 19113, 25691, 77073, 309409, 928227, 7116407, 21349221]

約数ペア:

[(1, 21349221), (3, 7116407), (23, 928227), (69, 309409), (277, 77073), (831, 25691), (1117, 19113), (3351, 6371)]