208565709

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{217937}}^1$

素因数の和:217980

約数の個数: 16

約数和(自身を含む): 313830720

約数和(自身を除く): 105265011

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 217937, 653811, 2397307, 6320173, 7191921, 18960519, 69521903, 208565709]

約数ペア:

[(1, 208565709), (3, 69521903), (11, 18960519), (29, 7191921), (33, 6320173), (87, 2397307), (319, 653811), (957, 217937)]