13812561

素因数分解:

$3^2\times 7^2\times {\mathrm{31321}}^1$

素因数の和:31341

約数の個数: 18

約数和(自身を含む): 23209602

約数和(自身を除く): 9397041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 31321, 93963, 219247, 281889, 657741, 1534729, 1973223, 4604187, 13812561]

約数ペア:

[(1, 13812561), (3, 4604187), (7, 1973223), (9, 1534729), (21, 657741), (49, 281889), (63, 219247), (147, 93963), (441, 31321)]