20006481

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 31122432

約数和(自身を除く): 11115951

約数列:

[1, 3, 11, 23, 33, 43, 69, 129, 253, 473, 613, 759, 989, 1419, 1839, 2967, 6743, 10879, 14099, 20229, 26359, 32637, 42297, 79077, 155089, 289949, 465267, 606257, 869847, 1818771, 6668827, 20006481]

約数ペア:

[(1, 20006481), (3, 6668827), (11, 1818771), (23, 869847), (33, 606257), (43, 465267), (69, 289949), (129, 155089), (253, 79077), (473, 42297), (613, 32637), (759, 26359), (989, 20229), (1419, 14099), (1839, 10879), (2967, 6743)]