20740286

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{757}}^1$

素因数の和:888

約数の個数: 32

約数和(自身を含む): 37839360

約数和(自身を除く): 17099074

約数列:

[1, 2, 7, 14, 19, 38, 103, 133, 206, 266, 721, 757, 1442, 1514, 1957, 3914, 5299, 10598, 13699, 14383, 27398, 28766, 77971, 100681, 155942, 201362, 545797, 1091594, 1481449, 2962898, 10370143, 20740286]

約数ペア:

[(1, 20740286), (2, 10370143), (7, 2962898), (14, 1481449), (19, 1091594), (38, 545797), (103, 201362), (133, 155942), (206, 100681), (266, 77971), (721, 28766), (757, 27398), (1442, 14383), (1514, 13699), (1957, 10598), (3914, 5299)]