20564685

素因数分解:

$3^4\times 5^1\times {\mathrm{50777}}^1$

素因数の和:50794

約数の個数: 20

約数和(自身を含む): 36864828

約数和(自身を除く): 16300143

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50777, 152331, 253885, 456993, 761655, 1370979, 2284965, 4112937, 6854895, 20564685]

約数ペア:

[(1, 20564685), (3, 6854895), (5, 4112937), (9, 2284965), (15, 1370979), (27, 761655), (45, 456993), (81, 253885), (135, 152331), (405, 50777)]