18219818981

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1087}}^1\times {\mathrm{3919}}^1$

素因数の和:5073

約数の個数: 32

約数和(自身を含む): 22928424960

約数和(自身を除く): 4708605979

約数列:

[1, 7, 13, 47, 91, 329, 611, 1087, 3919, 4277, 7609, 14131, 27433, 50947, 51089, 98917, 184193, 356629, 357623, 664157, 1289351, 2394509, 4259953, 4649099, 16761563, 29819671, 55379389, 200217791, 387655723, 1401524537, 2602831283, 18219818981]

約数ペア:

[(1, 18219818981), (7, 2602831283), (13, 1401524537), (47, 387655723), (91, 200217791), (329, 55379389), (611, 29819671), (1087, 16761563), (3919, 4649099), (4277, 4259953), (7609, 2394509), (14131, 1289351), (27433, 664157), (50947, 357623), (51089, 356629), (98917, 184193)]