19939189

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 21833280

約数和(自身を除く): 1894091

約数列:

[1, 19, 37, 113, 251, 703, 2147, 4181, 4769, 9287, 28363, 79439, 176453, 538897, 1049431, 19939189]

約数ペア:

[(1, 19939189), (19, 1049431), (37, 538897), (113, 176453), (251, 79439), (703, 28363), (2147, 9287), (4181, 4769)]