678740157

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{641}}^1\times {\mathrm{4057}}^1$

素因数の和:4733

約数の個数: 24

約数和(自身を含む): 1016042040

約数和(自身を除く): 337301883

約数列:

[1, 3, 9, 29, 87, 261, 641, 1923, 4057, 5769, 12171, 18589, 36513, 55767, 117653, 167301, 352959, 1058877, 2600537, 7801611, 23404833, 75415573, 226246719, 678740157]

約数ペア:

[(1, 678740157), (3, 226246719), (9, 75415573), (29, 23404833), (87, 7801611), (261, 2600537), (641, 1058877), (1923, 352959), (4057, 167301), (5769, 117653), (12171, 55767), (18589, 36513)]