678840694

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{348839}}^1$

素因数の和:348987

約数の個数: 16

約数和(自身を含む): 1172102400

約数和(自身を除く): 493261706

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 348839, 697678, 2441873, 4883746, 48488621, 96977242, 339420347, 678840694]

約数ペア:

[(1, 678840694), (2, 339420347), (7, 96977242), (14, 48488621), (139, 4883746), (278, 2441873), (973, 697678), (1946, 348839)]