21531367

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{521}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 26922672

約数和(自身を除く): 5391305

約数列:

[1, 11, 13, 17, 143, 187, 221, 289, 521, 2431, 3179, 3757, 5731, 6773, 8857, 41327, 74503, 97427, 115141, 150569, 1266551, 1656259, 1957397, 21531367]

約数ペア:

[(1, 21531367), (11, 1957397), (13, 1656259), (17, 1266551), (143, 150569), (187, 115141), (221, 97427), (289, 74503), (521, 41327), (2431, 8857), (3179, 6773), (3757, 5731)]