1639394638

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{19777}}^1$

素因数の和:20008

約数の個数: 32

約数和(自身を含む): 2916384768

約数和(自身を除く): 1276990130

約数列:

[1, 2, 7, 14, 31, 62, 191, 217, 382, 434, 1337, 2674, 5921, 11842, 19777, 39554, 41447, 82894, 138439, 276878, 613087, 1226174, 3777407, 4291609, 7554814, 8583218, 26441849, 52883698, 117099617, 234199234, 819697319, 1639394638]

約数ペア:

[(1, 1639394638), (2, 819697319), (7, 234199234), (14, 117099617), (31, 52883698), (62, 26441849), (191, 8583218), (217, 7554814), (382, 4291609), (434, 3777407), (1337, 1226174), (2674, 613087), (5921, 276878), (11842, 138439), (19777, 82894), (39554, 41447)]