21286045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{3617}}^1$

素因数の和:3740

約数の個数: 16

約数和(自身を含む): 28133568

約数和(自身を除く): 6847523

約数列:

[1, 5, 11, 55, 107, 535, 1177, 3617, 5885, 18085, 39787, 198935, 387019, 1935095, 4257209, 21286045]

約数ペア:

[(1, 21286045), (5, 4257209), (11, 1935095), (55, 387019), (107, 198935), (535, 39787), (1177, 18085), (3617, 5885)]