20989422

素因数分解:

$2^1\times 3^3\times {\mathrm{388693}}^1$

素因数の和:388704

約数の個数: 16

約数和(自身を含む): 46643280

約数和(自身を除く): 25653858

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 388693, 777386, 1166079, 2332158, 3498237, 6996474, 10494711, 20989422]

約数ペア:

[(1, 20989422), (2, 10494711), (3, 6996474), (6, 3498237), (9, 2332158), (18, 1166079), (27, 777386), (54, 388693)]