31911242

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 54172800

約数和(自身を除く): 22261558

約数列:

[1, 2, 11, 22, 37, 74, 197, 199, 394, 398, 407, 814, 2167, 2189, 4334, 4378, 7289, 7363, 14578, 14726, 39203, 78406, 80179, 80993, 160358, 161986, 431233, 862466, 1450511, 2901022, 15955621, 31911242]

約数ペア:

[(1, 31911242), (2, 15955621), (11, 2901022), (22, 1450511), (37, 862466), (74, 431233), (197, 161986), (199, 160358), (394, 80993), (398, 80179), (407, 78406), (814, 39203), (2167, 14726), (2189, 14578), (4334, 7363), (4378, 7289)]