18836942

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 12267058

約数列:

[1, 2, 19, 38, 47, 53, 94, 106, 199, 398, 893, 1007, 1786, 2014, 2491, 3781, 4982, 7562, 9353, 10547, 18706, 21094, 47329, 94658, 177707, 200393, 355414, 400786, 495709, 991418, 9418471, 18836942]

約数ペア:

[(1, 18836942), (2, 9418471), (19, 991418), (38, 495709), (47, 400786), (53, 355414), (94, 200393), (106, 177707), (199, 94658), (398, 47329), (893, 21094), (1007, 18706), (1786, 10547), (2014, 9353), (2491, 7562), (3781, 4982)]