20278701

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:482

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 11240019

約数列:

[1, 3, 9, 27, 37, 53, 111, 159, 333, 383, 477, 999, 1149, 1431, 1961, 3447, 5883, 10341, 14171, 17649, 20299, 42513, 52947, 60897, 127539, 182691, 382617, 548073, 751063, 2253189, 6759567, 20278701]

約数ペア:

[(1, 20278701), (3, 6759567), (9, 2253189), (27, 751063), (37, 548073), (53, 382617), (111, 182691), (159, 127539), (333, 60897), (383, 52947), (477, 42513), (999, 20299), (1149, 17649), (1431, 14171), (1961, 10341), (3447, 5883)]