21181827

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10336893

約数列:

[1, 3, 19, 23, 57, 69, 107, 151, 321, 437, 453, 1311, 2033, 2461, 2869, 3473, 6099, 7383, 8607, 10419, 16157, 46759, 48471, 65987, 140277, 197961, 306983, 371611, 920949, 1114833, 7060609, 21181827]

約数ペア:

[(1, 21181827), (3, 7060609), (19, 1114833), (23, 920949), (57, 371611), (69, 306983), (107, 197961), (151, 140277), (321, 65987), (437, 48471), (453, 46759), (1311, 16157), (2033, 10419), (2461, 8607), (2869, 7383), (3473, 6099)]