2021134820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1135469}}^1$

素因数の和:1135567

約数の個数: 24

約数和(自身を含む): 4292076600

約数和(自身を除く): 2270941780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 1135469, 2270938, 4541876, 5677345, 11354690, 22709380, 101056741, 202113482, 404226964, 505283705, 1010567410, 2021134820]

約数ペア:

[(1, 2021134820), (2, 1010567410), (4, 505283705), (5, 404226964), (10, 202113482), (20, 101056741), (89, 22709380), (178, 11354690), (356, 5677345), (445, 4541876), (890, 2270938), (1780, 1135469)]