208538309

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1\times {\mathrm{2113}}^1$

素因数の和:2756

約数の個数: 16

約数和(自身を含む): 249215232

約数和(自身を除く): 40676923

約数列:

[1, 7, 23, 161, 613, 2113, 4291, 14099, 14791, 48599, 98693, 340193, 1295269, 9066883, 29791187, 208538309]

約数ペア:

[(1, 208538309), (7, 29791187), (23, 9066883), (161, 1295269), (613, 340193), (2113, 98693), (4291, 48599), (14099, 14791)]