20997482018

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{79907}}^1$

素因数の和:80066

約数の個数: 32

約数和(自身を含む): 33450128064

約数和(自身を除く): 12452646046

約数列:

[1, 2, 37, 53, 67, 74, 106, 134, 1961, 2479, 3551, 3922, 4958, 7102, 79907, 131387, 159814, 262774, 2956559, 4235071, 5353769, 5913118, 8470142, 10707538, 156697627, 198089453, 283749757, 313395254, 396178906, 567499514, 10498741009, 20997482018]

約数ペア:

[(1, 20997482018), (2, 10498741009), (37, 567499514), (53, 396178906), (67, 313395254), (74, 283749757), (106, 198089453), (134, 156697627), (1961, 10707538), (2479, 8470142), (3551, 5913118), (3922, 5353769), (4958, 4235071), (7102, 2956559), (79907, 262774), (131387, 159814)]