208753551

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{809}}^1$

素因数の和:1340

約数の個数: 32

約数和(自身を含む): 326592000

約数和(自身を除く): 117838449

約数列:

[1, 3, 9, 19, 27, 57, 171, 503, 513, 809, 1509, 2427, 4527, 7281, 9557, 13581, 15371, 21843, 28671, 46113, 86013, 138339, 258039, 406927, 415017, 1220781, 3662343, 7731613, 10987029, 23194839, 69584517, 208753551]

約数ペア:

[(1, 208753551), (3, 69584517), (9, 23194839), (19, 10987029), (27, 7731613), (57, 3662343), (171, 1220781), (503, 415017), (513, 406927), (809, 258039), (1509, 138339), (2427, 86013), (4527, 46113), (7281, 28671), (9557, 21843), (13581, 15371)]