21475144

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{233}}^1\times {\mathrm{281}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 41572440

約数和(自身を除く): 20097296

約数列:

[1, 2, 4, 8, 41, 82, 164, 233, 281, 328, 466, 562, 932, 1124, 1864, 2248, 9553, 11521, 19106, 23042, 38212, 46084, 65473, 76424, 92168, 130946, 261892, 523784, 2684393, 5368786, 10737572, 21475144]

約数ペア:

[(1, 21475144), (2, 10737572), (4, 5368786), (8, 2684393), (41, 523784), (82, 261892), (164, 130946), (233, 92168), (281, 76424), (328, 65473), (466, 46084), (562, 38212), (932, 23042), (1124, 19106), (1864, 11521), (2248, 9553)]