209997705

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{3877}}^1$

素因数の和:4065

約数の個数: 32

約数和(自身を含む): 352929024

約数和(自身を除く): 142931319

約数列:

[1, 3, 5, 15, 23, 69, 115, 157, 345, 471, 785, 2355, 3611, 3877, 10833, 11631, 18055, 19385, 54165, 58155, 89171, 267513, 445855, 608689, 1337565, 1826067, 3043445, 9130335, 13999847, 41999541, 69999235, 209997705]

約数ペア:

[(1, 209997705), (3, 69999235), (5, 41999541), (15, 13999847), (23, 9130335), (69, 3043445), (115, 1826067), (157, 1337565), (345, 608689), (471, 445855), (785, 267513), (2355, 89171), (3611, 58155), (3877, 54165), (10833, 19385), (11631, 18055)]