21508775559

素因数分解:

$3^4\times {\mathrm{317}}^1\times {\mathrm{837667}}^1$

素因数の和:837996

約数の個数: 20

約数和(自身を含む): 32231789304

約数和(自身を除く): 10723013745

約数列:

[1, 3, 9, 27, 81, 317, 951, 2853, 8559, 25677, 837667, 2513001, 7539003, 22617009, 67851027, 265540439, 796621317, 2389863951, 7169591853, 21508775559]

約数ペア:

[(1, 21508775559), (3, 7169591853), (9, 2389863951), (27, 796621317), (81, 265540439), (317, 67851027), (951, 22617009), (2853, 7539003), (8559, 2513001), (25677, 837667)]