21000836345

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{7103}}^1\times {\mathrm{5741}}^1$

素因数の和:12952

約数の個数: 16

約数和(自身を含む): 25453688832

約数和(自身を除く): 4452852487

約数列:

[1, 5, 103, 515, 5741, 7103, 28705, 35515, 591323, 731609, 2956615, 3658045, 40778323, 203891615, 4200167269, 21000836345]

約数ペア:

[(1, 21000836345), (5, 4200167269), (103, 203891615), (515, 40778323), (5741, 3658045), (7103, 2956615), (28705, 731609), (35515, 591323)]