20864679

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 11483481

約数列:

[1, 3, 11, 19, 33, 57, 107, 209, 311, 321, 627, 933, 1177, 2033, 3421, 3531, 5909, 6099, 10263, 17727, 22363, 33277, 64999, 67089, 99831, 194997, 366047, 632263, 1098141, 1896789, 6954893, 20864679]

約数ペア:

[(1, 20864679), (3, 6954893), (11, 1896789), (19, 1098141), (33, 632263), (57, 366047), (107, 194997), (209, 99831), (311, 67089), (321, 64999), (627, 33277), (933, 22363), (1177, 17727), (2033, 10263), (3421, 6099), (3531, 5909)]