28020507

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 40449024

約数和(自身を除く): 12428517

約数列:

[1, 3, 37, 41, 47, 111, 123, 131, 141, 393, 1517, 1739, 1927, 4551, 4847, 5217, 5371, 5781, 6157, 14541, 16113, 18471, 71299, 198727, 213897, 227809, 252437, 596181, 683427, 757311, 9340169, 28020507]

約数ペア:

[(1, 28020507), (3, 9340169), (37, 757311), (41, 683427), (47, 596181), (111, 252437), (123, 227809), (131, 213897), (141, 198727), (393, 71299), (1517, 18471), (1739, 16113), (1927, 14541), (4551, 6157), (4847, 5781), (5217, 5371)]