20344995

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1787}}^1$

素因数の和:1832

約数の個数: 48

約数和(自身を含む): 40165632

約数和(自身を除く): 19820637

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 759, 1035, 1265, 1787, 2277, 3795, 5361, 8935, 11385, 16083, 19657, 26805, 41101, 58971, 80415, 98285, 123303, 176913, 205505, 294855, 369909, 452111, 616515, 884565, 1356333, 1849545, 2260555, 4068999, 6781665, 20344995]

約数ペア:

[(1, 20344995), (3, 6781665), (5, 4068999), (9, 2260555), (11, 1849545), (15, 1356333), (23, 884565), (33, 616515), (45, 452111), (55, 369909), (69, 294855), (99, 205505), (115, 176913), (165, 123303), (207, 98285), (253, 80415), (345, 58971), (495, 41101), (759, 26805), (1035, 19657), (1265, 16083), (1787, 11385), (2277, 8935), (3795, 5361)]