209519951

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1\times {\mathrm{647}}^1$

素因数の和:1150

約数の個数: 16

約数和(自身を含む): 227867904

約数和(自身を除く): 18347953

約数列:

[1, 17, 43, 443, 647, 731, 7531, 10999, 19049, 27821, 286621, 323833, 472957, 4872557, 12324703, 209519951]

約数ペア:

[(1, 209519951), (17, 12324703), (43, 4872557), (443, 472957), (647, 323833), (731, 286621), (7531, 27821), (10999, 19049)]