21107613

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5527}}^1$

素因数の和:5616

約数の個数: 16

約数和(自身を含む): 30072320

約数和(自身を除く): 8964707

約数列:

[1, 3, 19, 57, 67, 201, 1273, 3819, 5527, 16581, 105013, 315039, 370309, 1110927, 7035871, 21107613]

約数ペア:

[(1, 21107613), (3, 7035871), (19, 1110927), (57, 370309), (67, 315039), (201, 105013), (1273, 16581), (3819, 5527)]