19720252

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{829}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 36486800

約数和(自身を除く): 16766548

約数列:

[1, 2, 4, 19, 38, 76, 313, 626, 829, 1252, 1658, 3316, 5947, 11894, 15751, 23788, 31502, 63004, 259477, 518954, 1037908, 4930063, 9860126, 19720252]

約数ペア:

[(1, 19720252), (2, 9860126), (4, 4930063), (19, 1037908), (38, 518954), (76, 259477), (313, 63004), (626, 31502), (829, 23788), (1252, 15751), (1658, 11894), (3316, 5947)]