21094310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72739}}^1$

素因数の和:72775

約数の個数: 16

約数和(自身を含む): 39279600

約数和(自身を除く): 18185290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72739, 145478, 363695, 727390, 2109431, 4218862, 10547155, 21094310]

約数ペア:

[(1, 21094310), (2, 10547155), (5, 4218862), (10, 2109431), (29, 727390), (58, 363695), (145, 145478), (290, 72739)]