19972797

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7213}}^1$

素因数の和:7300

約数の個数: 16

約数和(自身を含む): 29086848

約数和(自身を除く): 9114051

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7213, 21639, 93769, 281307, 512123, 1536369, 6657599, 19972797]

約数ペア:

[(1, 19972797), (3, 6657599), (13, 1536369), (39, 512123), (71, 281307), (213, 93769), (923, 21639), (2769, 7213)]