20722863

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{311}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 12823377

約数列:

[1, 3, 7, 19, 21, 57, 133, 167, 311, 399, 501, 933, 1169, 2177, 3173, 3507, 5909, 6531, 9519, 17727, 22211, 41363, 51937, 66633, 124089, 155811, 363559, 986803, 1090677, 2960409, 6907621, 20722863]

約数ペア:

[(1, 20722863), (3, 6907621), (7, 2960409), (19, 1090677), (21, 986803), (57, 363559), (133, 155811), (167, 124089), (311, 66633), (399, 51937), (501, 41363), (933, 22211), (1169, 17727), (2177, 9519), (3173, 6531), (3507, 5909)]