18320731

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{613}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 22865360

約数和(自身を除く): 4544629

約数列:

[1, 11, 13, 19, 121, 143, 209, 247, 613, 1573, 2299, 2717, 6743, 7969, 11647, 29887, 74173, 87659, 128117, 151411, 964249, 1409287, 1665521, 18320731]

約数ペア:

[(1, 18320731), (11, 1665521), (13, 1409287), (19, 964249), (121, 151411), (143, 128117), (209, 87659), (247, 74173), (613, 29887), (1573, 11647), (2299, 7969), (2717, 6743)]