20217966

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{613}}^1$

素因数の和:880

約数の個数: 32

約数和(自身を含む): 42439680

約数和(自身を除く): 22221714

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 239, 478, 613, 717, 1226, 1434, 1839, 3678, 5497, 10994, 14099, 16491, 28198, 32982, 42297, 84594, 146507, 293014, 439521, 879042, 3369661, 6739322, 10108983, 20217966]

約数ペア:

[(1, 20217966), (2, 10108983), (3, 6739322), (6, 3369661), (23, 879042), (46, 439521), (69, 293014), (138, 146507), (239, 84594), (478, 42297), (613, 32982), (717, 28198), (1226, 16491), (1434, 14099), (1839, 10994), (3678, 5497)]