20481555

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{23143}}^1$

素因数の和:23210

約数の個数: 16

約数和(自身を含む): 33327360

約数和(自身を除く): 12845805

約数列:

[1, 3, 5, 15, 59, 177, 295, 885, 23143, 69429, 115715, 347145, 1365437, 4096311, 6827185, 20481555]

約数ペア:

[(1, 20481555), (3, 6827185), (5, 4096311), (15, 1365437), (59, 347145), (177, 115715), (295, 69429), (885, 23143)]