21990066

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{523573}}^1$

素因数の和:523585

約数の個数: 16

約数和(自身を含む): 50263104

約数和(自身を除く): 28273038

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 523573, 1047146, 1570719, 3141438, 3665011, 7330022, 10995033, 21990066]

約数ペア:

[(1, 21990066), (2, 10995033), (3, 7330022), (6, 3665011), (7, 3141438), (14, 1570719), (21, 1047146), (42, 523573)]