20278995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11173}}^1$

素因数の和:11203

約数の個数: 24

約数和(自身を含む): 35667408

約数和(自身を除く): 15388413

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 11173, 33519, 55865, 122903, 167595, 368709, 614515, 1351933, 1843545, 4055799, 6759665, 20278995]

約数ペア:

[(1, 20278995), (3, 6759665), (5, 4055799), (11, 1843545), (15, 1351933), (33, 614515), (55, 368709), (121, 167595), (165, 122903), (363, 55865), (605, 33519), (1815, 11173)]