20649864

素因数分解:

$2^3\times 3^1\times {\mathrm{863}}^1\times {\mathrm{997}}^1$

素因数の和:1869

約数の個数: 32

約数和(自身を含む): 51736320

約数和(自身を除く): 31086456

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 863, 997, 1726, 1994, 2589, 2991, 3452, 3988, 5178, 5982, 6904, 7976, 10356, 11964, 20712, 23928, 860411, 1720822, 2581233, 3441644, 5162466, 6883288, 10324932, 20649864]

約数ペア:

[(1, 20649864), (2, 10324932), (3, 6883288), (4, 5162466), (6, 3441644), (8, 2581233), (12, 1720822), (24, 860411), (863, 23928), (997, 20712), (1726, 11964), (1994, 10356), (2589, 7976), (2991, 6904), (3452, 5982), (3988, 5178)]