21274690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73361}}^1$

素因数の和:73397

約数の個数: 16

約数和(自身を含む): 39615480

約数和(自身を除く): 18340790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73361, 146722, 366805, 733610, 2127469, 4254938, 10637345, 21274690]

約数ペア:

[(1, 21274690), (2, 10637345), (5, 4254938), (10, 2127469), (29, 733610), (58, 366805), (145, 146722), (290, 73361)]