20970705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{199721}}^1$

素因数の和:199736

約数の個数: 16

約数和(自身を含む): 38346624

約数和(自身を除く): 17375919

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 199721, 599163, 998605, 1398047, 2995815, 4194141, 6990235, 20970705]

約数ペア:

[(1, 20970705), (3, 6990235), (5, 4194141), (7, 2995815), (15, 1398047), (21, 998605), (35, 599163), (105, 199721)]