21229812

素因数分解:

$2^2\times 3^2\times {\mathrm{589717}}^1$

素因数の和:589727

約数の個数: 18

約数和(自身を含む): 53664338

約数和(自身を除く): 32434526

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 589717, 1179434, 1769151, 2358868, 3538302, 5307453, 7076604, 10614906, 21229812]

約数ペア:

[(1, 21229812), (2, 10614906), (3, 7076604), (4, 5307453), (6, 3538302), (9, 2358868), (12, 1769151), (18, 1179434), (36, 589717)]