21044181

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{919}}^1$

素因数の和:1388

約数の個数: 16

約数和(自身を含む): 29808000

約数和(自身を除く): 8763819

約数列:

[1, 3, 17, 51, 449, 919, 1347, 2757, 7633, 15623, 22899, 46869, 412631, 1237893, 7014727, 21044181]

約数ペア:

[(1, 21044181), (3, 7014727), (17, 1237893), (51, 412631), (449, 46869), (919, 22899), (1347, 15623), (2757, 7633)]