19817391

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 30030336

約数和(自身を除く): 10212945

約数列:

[1, 3, 11, 33, 41, 97, 123, 151, 291, 451, 453, 1067, 1353, 1661, 3201, 3977, 4983, 6191, 11931, 14647, 18573, 43747, 43941, 68101, 131241, 161117, 204303, 483351, 600527, 1801581, 6605797, 19817391]

約数ペア:

[(1, 19817391), (3, 6605797), (11, 1801581), (33, 600527), (41, 483351), (97, 204303), (123, 161117), (151, 131241), (291, 68101), (451, 43941), (453, 43747), (1067, 18573), (1353, 14647), (1661, 11931), (3201, 6191), (3977, 4983)]