2021214155

素因数分解:

$5^1\times {\mathrm{71}}^2\times {\mathrm{80191}}^1$

素因数の和:80338

約数の個数: 12

約数和(自身を含む): 2460130176

約数和(自身を除く): 438916021

約数列:

[1, 5, 71, 355, 5041, 25205, 80191, 400955, 5693561, 28467805, 404242831, 2021214155]

約数ペア:

[(1, 2021214155), (5, 404242831), (71, 28467805), (355, 5693561), (5041, 400955), (25205, 80191)]