819697319

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{19777}}^1$

素因数の和:20006

約数の個数: 16

約数和(自身を含む): 972128256

約数和(自身を除く): 152430937

約数列:

[1, 7, 31, 191, 217, 1337, 5921, 19777, 41447, 138439, 613087, 3777407, 4291609, 26441849, 117099617, 819697319]

約数ペア:

[(1, 819697319), (7, 117099617), (31, 26441849), (191, 4291609), (217, 3777407), (1337, 613087), (5921, 138439), (19777, 41447)]