639090046

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{106907}}^1$

素因数の和:106984

約数の個数: 24

約数和(自身を含む): 1133438616

約数和(自身を除く): 494348570

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 5978, 106907, 213814, 748349, 1496698, 5238443, 6521327, 10476886, 13042654, 45649289, 91298578, 319545023, 639090046]

約数ペア:

[(1, 639090046), (2, 319545023), (7, 91298578), (14, 45649289), (49, 13042654), (61, 10476886), (98, 6521327), (122, 5238443), (427, 1496698), (854, 748349), (2989, 213814), (5978, 106907)]