20964808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154153}}^1$

素因数の和:154176

約数の個数: 16

約数和(自身を含む): 41621580

約数和(自身を除く): 20656772

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154153, 308306, 616612, 1233224, 2620601, 5241202, 10482404, 20964808]

約数ペア:

[(1, 20964808), (2, 10482404), (4, 5241202), (8, 2620601), (17, 1233224), (34, 616612), (68, 308306), (136, 154153)]