19782202

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{6469}}^1$

素因数の和:6621

約数の個数: 16

約数和(自身を含む): 32608800

約数和(自身を除く): 12826598

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 6469, 12938, 71159, 142318, 899191, 1798382, 9891101, 19782202]

約数ペア:

[(1, 19782202), (2, 9891101), (11, 1798382), (22, 899191), (139, 142318), (278, 71159), (1529, 12938), (3058, 6469)]