21572946

素因数分解:

$2^1\times 3^3\times {\mathrm{399499}}^1$

素因数の和:399510

約数の個数: 16

約数和(自身を含む): 47940000

約数和(自身を除く): 26367054

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 399499, 798998, 1198497, 2396994, 3595491, 7190982, 10786473, 21572946]

約数ペア:

[(1, 21572946), (2, 10786473), (3, 7190982), (6, 3595491), (9, 2396994), (18, 1198497), (27, 798998), (54, 399499)]