138139379

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 167049216

約数和(自身を除く): 28909837

約数列:

[1, 7, 31, 49, 211, 217, 431, 1477, 1519, 3017, 6541, 10339, 13361, 21119, 45787, 90941, 93527, 320509, 636587, 654689, 2819171, 4456109, 19734197, 138139379]

約数ペア:

[(1, 138139379), (7, 19734197), (31, 4456109), (49, 2819171), (211, 654689), (217, 636587), (431, 320509), (1477, 93527), (1519, 90941), (3017, 45787), (6541, 21119), (10339, 13361)]