661933779

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{1249}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 967680000

約数和(自身を除く): 305746221

約数列:

[1, 3, 13, 39, 107, 127, 321, 381, 1249, 1391, 1651, 3747, 4173, 4953, 13589, 16237, 40767, 48711, 133643, 158623, 176657, 400929, 475869, 529971, 1737359, 2062099, 5212077, 6186297, 16972661, 50917983, 220644593, 661933779]

約数ペア:

[(1, 661933779), (3, 220644593), (13, 50917983), (39, 16972661), (107, 6186297), (127, 5212077), (321, 2062099), (381, 1737359), (1249, 529971), (1391, 475869), (1651, 400929), (3747, 176657), (4173, 158623), (4953, 133643), (13589, 48711), (16237, 40767)]