21840894

素因数分解:

$2^1\times 3^3\times {\mathrm{404461}}^1$

素因数の和:404472

約数の個数: 16

約数和(自身を含む): 48535440

約数和(自身を除く): 26694546

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 404461, 808922, 1213383, 2426766, 3640149, 7280298, 10920447, 21840894]

約数ペア:

[(1, 21840894), (2, 10920447), (3, 7280298), (6, 3640149), (9, 2426766), (18, 1213383), (27, 808922), (54, 404461)]