18820197

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4421}}^1$

素因数の和:4481

約数の個数: 24

約数和(自身を含む): 30352608

約数和(自身を除く): 11532411

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 4421, 13263, 39789, 48631, 145893, 190103, 437679, 570309, 1710927, 2091133, 6273399, 18820197]

約数ペア:

[(1, 18820197), (3, 6273399), (9, 2091133), (11, 1710927), (33, 570309), (43, 437679), (99, 190103), (129, 145893), (387, 48631), (473, 39789), (1419, 13263), (4257, 4421)]