21676479

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{38639}}^1$

素因数の和:38670

約数の個数: 16

約数和(自身を含む): 33384960

約数和(自身を除く): 11708481

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 38639, 115917, 425029, 656863, 1275087, 1970589, 7225493, 21676479]

約数ペア:

[(1, 21676479), (3, 7225493), (11, 1970589), (17, 1275087), (33, 656863), (51, 425029), (187, 115917), (561, 38639)]