21605886

素因数分解:

$2^1\times 3^3\times {\mathrm{400109}}^1$

素因数の和:400120

約数の個数: 16

約数和(自身を含む): 48013200

約数和(自身を除く): 26407314

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 400109, 800218, 1200327, 2400654, 3600981, 7201962, 10802943, 21605886]

約数ペア:

[(1, 21605886), (2, 10802943), (3, 7201962), (6, 3600981), (9, 2400654), (18, 1200327), (27, 800218), (54, 400109)]