19836718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 14377682

約数列:

[1, 2, 11, 22, 23, 46, 197, 199, 253, 394, 398, 506, 2167, 2189, 4334, 4378, 4531, 4577, 9062, 9154, 39203, 49841, 50347, 78406, 99682, 100694, 431233, 862466, 901669, 1803338, 9918359, 19836718]

約数ペア:

[(1, 19836718), (2, 9918359), (11, 1803338), (22, 901669), (23, 862466), (46, 431233), (197, 100694), (199, 99682), (253, 78406), (394, 50347), (398, 49841), (506, 39203), (2167, 9154), (2189, 9062), (4334, 4577), (4378, 4531)]