21212667

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6353}}^1$

素因数の和:6419

約数の個数: 24

約数和(自身を含む): 35684064

約数和(自身を除く): 14471397

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6353, 19059, 44471, 57177, 133413, 336709, 400239, 1010127, 2356963, 3030381, 7070889, 21212667]

約数ペア:

[(1, 21212667), (3, 7070889), (7, 3030381), (9, 2356963), (21, 1010127), (53, 400239), (63, 336709), (159, 133413), (371, 57177), (477, 44471), (1113, 19059), (3339, 6353)]