420831

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:155

約数の個数: 24

約数和(自身を含む): 673920

約数和(自身を除く): 253089

約数列:

[1, 3, 9, 19, 23, 57, 69, 107, 171, 207, 321, 437, 963, 1311, 2033, 2461, 3933, 6099, 7383, 18297, 22149, 46759, 140277, 420831]

約数ペア:

[(1, 420831), (3, 140277), (9, 46759), (19, 22149), (23, 18297), (57, 7383), (69, 6099), (107, 3933), (171, 2461), (207, 2033), (321, 1311), (437, 963)]