21813969

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2179}}^1$

素因数の和:2300

約数の個数: 16

約数和(自身を含む): 30136320

約数和(自身を除く): 8322351

約数列:

[1, 3, 47, 71, 141, 213, 2179, 3337, 6537, 10011, 102413, 154709, 307239, 464127, 7271323, 21813969]

約数ペア:

[(1, 21813969), (3, 7271323), (47, 464127), (71, 307239), (141, 154709), (213, 102413), (2179, 10011), (3337, 6537)]