870978087

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{27817}}^1$

素因数の和:27908

約数の個数: 36

約数和(自身を含む): 1484145936

約数和(自身を除く): 613167849

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 1491, 3479, 4473, 10437, 27817, 31311, 83451, 194719, 250353, 584157, 1363033, 1752471, 1975007, 4089099, 5925021, 12267297, 13825049, 17775063, 41475147, 96775343, 124425441, 290326029, 870978087]

約数ペア:

[(1, 870978087), (3, 290326029), (7, 124425441), (9, 96775343), (21, 41475147), (49, 17775063), (63, 13825049), (71, 12267297), (147, 5925021), (213, 4089099), (441, 1975007), (497, 1752471), (639, 1363033), (1491, 584157), (3479, 250353), (4473, 194719), (10437, 83451), (27817, 31311)]