21185465

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5657}}^1$

素因数の和:5776

約数の個数: 16

約数和(自身を含む): 29331072

約数和(自身を除く): 8145607

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5657, 28285, 39599, 197995, 605299, 3026495, 4237093, 21185465]

約数ペア:

[(1, 21185465), (5, 4237093), (7, 3026495), (35, 605299), (107, 197995), (535, 39599), (749, 28285), (3745, 5657)]