20888163

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 13257117

約数列:

[1, 3, 9, 19, 23, 47, 57, 69, 113, 141, 171, 207, 339, 423, 437, 893, 1017, 1081, 1311, 2147, 2599, 2679, 3243, 3933, 5311, 6441, 7797, 8037, 9729, 15933, 19323, 20539, 23391, 47799, 49381, 61617, 100909, 122153, 148143, 184851, 302727, 366459, 444429, 908181, 1099377, 2320907, 6962721, 20888163]

約数ペア:

[(1, 20888163), (3, 6962721), (9, 2320907), (19, 1099377), (23, 908181), (47, 444429), (57, 366459), (69, 302727), (113, 184851), (141, 148143), (171, 122153), (207, 100909), (339, 61617), (423, 49381), (437, 47799), (893, 23391), (1017, 20539), (1081, 19323), (1311, 15933), (2147, 9729), (2599, 8037), (2679, 7797), (3243, 6441), (3933, 5311)]