20838726

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{15859}}^1$

素因数の和:15940

約数の個数: 24

約数和(自身を含む): 45771960

約数和(自身を除く): 24933234

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 15859, 31718, 47577, 95154, 142731, 285462, 1157707, 2315414, 3473121, 6946242, 10419363, 20838726]

約数ペア:

[(1, 20838726), (2, 10419363), (3, 6946242), (6, 3473121), (9, 2315414), (18, 1157707), (73, 285462), (146, 142731), (219, 95154), (438, 47577), (657, 31718), (1314, 15859)]