20031851

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1091}}^1$

素因数の和:1202

約数の個数: 16

約数和(自身を含む): 23831808

約数和(自身を除く): 3799957

約数列:

[1, 7, 43, 61, 301, 427, 1091, 2623, 7637, 18361, 46913, 66551, 328391, 465857, 2861693, 20031851]

約数ペア:

[(1, 20031851), (7, 2861693), (43, 465857), (61, 328391), (301, 66551), (427, 46913), (1091, 18361), (2623, 7637)]