20901273

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10202727

約数列:

[1, 3, 19, 23, 57, 69, 107, 149, 321, 437, 447, 1311, 2033, 2461, 2831, 3427, 6099, 7383, 8493, 10281, 15943, 46759, 47829, 65113, 140277, 195339, 302917, 366689, 908751, 1100067, 6967091, 20901273]

約数ペア:

[(1, 20901273), (3, 6967091), (19, 1100067), (23, 908751), (57, 366689), (69, 302917), (107, 195339), (149, 140277), (321, 65113), (437, 47829), (447, 46759), (1311, 15943), (2033, 10281), (2461, 8493), (2831, 7383), (3427, 6099)]