19778612

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9949}}^1$

素因数の和:10031

約数の個数: 24

約数和(自身を含む): 40118400

約数和(自身を除く): 20339788

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 9949, 19898, 39796, 69643, 139286, 278572, 706379, 1412758, 2825516, 4944653, 9889306, 19778612]

約数ペア:

[(1, 19778612), (2, 9889306), (4, 4944653), (7, 2825516), (14, 1412758), (28, 706379), (71, 278572), (142, 139286), (284, 69643), (497, 39796), (994, 19898), (1988, 9949)]