21013221374

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{967}}^1\times {\mathrm{2851}}^1$

素因数の和:3960

約数の個数: 32

約数和(自身を含む): 32731286016

約数和(自身を除く): 11718064642

約数列:

[1, 2, 37, 74, 103, 206, 967, 1934, 2851, 3811, 5702, 7622, 35779, 71558, 99601, 105487, 199202, 210974, 293653, 587306, 2756917, 3685237, 5513834, 7370474, 10865161, 21730322, 102005929, 204011858, 283962451, 567924902, 10506610687, 21013221374]

約数ペア:

[(1, 21013221374), (2, 10506610687), (37, 567924902), (74, 283962451), (103, 204011858), (206, 102005929), (967, 21730322), (1934, 10865161), (2851, 7370474), (3811, 5513834), (5702, 3685237), (7622, 2756917), (35779, 587306), (71558, 293653), (99601, 210974), (105487, 199202)]