21611178

素因数分解:

$2^1\times 3^3\times {\mathrm{400207}}^1$

素因数の和:400218

約数の個数: 16

約数和(自身を含む): 48024960

約数和(自身を除く): 26413782

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 400207, 800414, 1200621, 2401242, 3601863, 7203726, 10805589, 21611178]

約数ペア:

[(1, 21611178), (2, 10805589), (3, 7203726), (6, 3601863), (9, 2401242), (18, 1200621), (27, 800414), (54, 400207)]