278811099

素因数分解:

$3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{11261}}^1$

素因数の和:11408

約数の個数: 32

約数和(自身を含む): 475706880

約数和(自身を除く): 196895781

約数列:

[1, 3, 7, 9, 21, 27, 63, 131, 189, 393, 917, 1179, 2751, 3537, 8253, 11261, 24759, 33783, 78827, 101349, 236481, 304047, 709443, 1475191, 2128329, 4425573, 10326337, 13276719, 30979011, 39830157, 92937033, 278811099]

約数ペア:

[(1, 278811099), (3, 92937033), (7, 39830157), (9, 30979011), (21, 13276719), (27, 10326337), (63, 4425573), (131, 2128329), (189, 1475191), (393, 709443), (917, 304047), (1179, 236481), (2751, 101349), (3537, 78827), (8253, 33783), (11261, 24759)]