21523899

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{919}}^1$

素因数の和:1170

約数の個数: 16

約数和(自身を含む): 29646080

約数和(自身を除く): 8122181

約数列:

[1, 3, 37, 111, 211, 633, 919, 2757, 7807, 23421, 34003, 102009, 193909, 581727, 7174633, 21523899]

約数ペア:

[(1, 21523899), (3, 7174633), (37, 581727), (111, 193909), (211, 102009), (633, 34003), (919, 23421), (2757, 7807)]