788194017

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 1303868160

約数和(自身を除く): 515674143

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 137, 333, 351, 411, 443, 481, 999, 1233, 1329, 1443, 1781, 3699, 3987, 4329, 5069, 5343, 5759, 11961, 12987, 15207, 16029, 16391, 17277, 45621, 48087, 49173, 51831, 60691, 65897, 136863, 147519, 155493, 182073, 197691, 213083, 442557, 546219, 593073, 639249, 788983, 1638657, 1779219, 1917747, 2245567, 2366949, 5753241, 6736701, 7100847, 20210103, 21302541, 29192371, 60630309, 87577113, 262731339, 788194017]

約数ペア:

[(1, 788194017), (3, 262731339), (9, 87577113), (13, 60630309), (27, 29192371), (37, 21302541), (39, 20210103), (111, 7100847), (117, 6736701), (137, 5753241), (333, 2366949), (351, 2245567), (411, 1917747), (443, 1779219), (481, 1638657), (999, 788983), (1233, 639249), (1329, 593073), (1443, 546219), (1781, 442557), (3699, 213083), (3987, 197691), (4329, 182073), (5069, 155493), (5343, 147519), (5759, 136863), (11961, 65897), (12987, 60691), (15207, 51831), (16029, 49173), (16391, 48087), (17277, 45621)]