278323533

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{180847}}^1$

素因数の和:180878

約数の個数: 20

約数和(自身を含む): 437652160

約数和(自身を除く): 159328627

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 180847, 542541, 1627623, 3436093, 4882869, 10308279, 14648607, 30924837, 92774511, 278323533]

約数ペア:

[(1, 278323533), (3, 92774511), (9, 30924837), (19, 14648607), (27, 10308279), (57, 4882869), (81, 3436093), (171, 1627623), (513, 542541), (1539, 180847)]