20553315

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1277}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 34966080

約数和(自身を除く): 14412765

約数列:

[1, 3, 5, 15, 29, 37, 87, 111, 145, 185, 435, 555, 1073, 1277, 3219, 3831, 5365, 6385, 16095, 19155, 37033, 47249, 111099, 141747, 185165, 236245, 555495, 708735, 1370221, 4110663, 6851105, 20553315]

約数ペア:

[(1, 20553315), (3, 6851105), (5, 4110663), (15, 1370221), (29, 708735), (37, 555495), (87, 236245), (111, 185165), (145, 141747), (185, 111099), (435, 47249), (555, 37033), (1073, 19155), (1277, 16095), (3219, 6385), (3831, 5365)]