19889609

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 21909888

約数和(自身を除く): 2020279

約数列:

[1, 17, 37, 103, 307, 629, 1751, 3811, 5219, 11359, 31621, 64787, 193103, 537557, 1169977, 19889609]

約数ペア:

[(1, 19889609), (17, 1169977), (37, 537557), (103, 193103), (307, 64787), (629, 31621), (1751, 11359), (3811, 5219)]