21498057

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3313}}^1$

素因数の和:3429

約数の個数: 24

約数和(自身を含む): 35844224

約数和(自身を除く): 14346167

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 3313, 6489, 9939, 23191, 29817, 69573, 208719, 341239, 1023717, 2388673, 3071151, 7166019, 21498057]

約数ペア:

[(1, 21498057), (3, 7166019), (7, 3071151), (9, 2388673), (21, 1023717), (63, 341239), (103, 208719), (309, 69573), (721, 29817), (927, 23191), (2163, 9939), (3313, 6489)]