209958993

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{7753}}^1$

素因数の和:7838

約数の個数: 32

約数和(自身を含む): 334972800

約数和(自身を除く): 125013807

約数列:

[1, 3, 9, 17, 27, 51, 59, 153, 177, 459, 531, 1003, 1593, 3009, 7753, 9027, 23259, 27081, 69777, 131801, 209331, 395403, 457427, 1186209, 1372281, 3558627, 4116843, 7776259, 12350529, 23328777, 69986331, 209958993]

約数ペア:

[(1, 209958993), (3, 69986331), (9, 23328777), (17, 12350529), (27, 7776259), (51, 4116843), (59, 3558627), (153, 1372281), (177, 1186209), (459, 457427), (531, 395403), (1003, 209331), (1593, 131801), (3009, 69777), (7753, 27081), (9027, 23259)]