18709945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5119}}^1$

素因数の和:5184

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 5620295

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5119, 25595, 87023, 220117, 435115, 1100585, 3741989, 18709945]

約数ペア:

[(1, 18709945), (5, 3741989), (17, 1100585), (43, 435115), (85, 220117), (215, 87023), (731, 25595), (3655, 5119)]