18028577

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{331}}^1$

素因数の和:620

約数の個数: 16

約数和(自身を含む): 21417984

約数和(自身を除く): 3389407

約数列:

[1, 7, 31, 217, 251, 331, 1757, 2317, 7781, 10261, 54467, 71827, 83081, 581567, 2575511, 18028577]

約数ペア:

[(1, 18028577), (7, 2575511), (31, 581567), (217, 83081), (251, 71827), (331, 54467), (1757, 10261), (2317, 7781)]