7985871

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{5189}}^1$

素因数の和:5220

約数の個数: 20

約数和(自身を含む): 12559800

約数和(自身を除く): 4573929

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 5189, 15567, 46701, 98591, 140103, 295773, 420309, 887319, 2661957, 7985871]

約数ペア:

[(1, 7985871), (3, 2661957), (9, 887319), (19, 420309), (27, 295773), (57, 140103), (81, 98591), (171, 46701), (513, 15567), (1539, 5189)]