20998188

素因数分解:

$2^2\times 3^2\times {\mathrm{467}}^1\times {\mathrm{1249}}^1$

素因数の和:1726

約数の個数: 36

約数和(自身を含む): 53235000

約数和(自身を除く): 32236812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 467, 934, 1249, 1401, 1868, 2498, 2802, 3747, 4203, 4996, 5604, 7494, 8406, 11241, 14988, 16812, 22482, 44964, 583283, 1166566, 1749849, 2333132, 3499698, 5249547, 6999396, 10499094, 20998188]

約数ペア:

[(1, 20998188), (2, 10499094), (3, 6999396), (4, 5249547), (6, 3499698), (9, 2333132), (12, 1749849), (18, 1166566), (36, 583283), (467, 44964), (934, 22482), (1249, 16812), (1401, 14988), (1868, 11241), (2498, 8406), (2802, 7494), (3747, 5604), (4203, 4996)]