19609972

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1097}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 35509320

約数和(自身を除く): 15899348

約数列:

[1, 2, 4, 41, 82, 109, 164, 218, 436, 1097, 2194, 4388, 4469, 8938, 17876, 44977, 89954, 119573, 179908, 239146, 478292, 4902493, 9804986, 19609972]

約数ペア:

[(1, 19609972), (2, 9804986), (4, 4902493), (41, 478292), (82, 239146), (109, 179908), (164, 119573), (218, 89954), (436, 44977), (1097, 17876), (2194, 8938), (4388, 4469)]