1021211815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{221281}}^1$

素因数の和:221370

約数の個数: 16

約数和(自身を含む): 1338313536

約数和(自身を除く): 317101721

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 221281, 1106405, 2876653, 14383265, 15710951, 78554755, 204242363, 1021211815]

約数ペア:

[(1, 1021211815), (5, 204242363), (13, 78554755), (65, 15710951), (71, 14383265), (355, 2876653), (923, 1106405), (4615, 221281)]