21333385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{599}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 5882615

約数列:

[1, 5, 17, 85, 419, 599, 2095, 2995, 7123, 10183, 35615, 50915, 250981, 1254905, 4266677, 21333385]

約数ペア:

[(1, 21333385), (5, 4266677), (17, 1254905), (85, 250981), (419, 50915), (599, 35615), (2095, 10183), (2995, 7123)]