20814717

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90107}}^1$

素因数の和:90128

約数の個数: 16

約数和(自身を含む): 34601472

約数和(自身を除く): 13786755

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90107, 270321, 630749, 991177, 1892247, 2973531, 6938239, 20814717]

約数ペア:

[(1, 20814717), (3, 6938239), (7, 2973531), (11, 1892247), (21, 991177), (33, 630749), (77, 270321), (231, 90107)]