21455988

素因数分解:

$2^2\times 3^1\times {\mathrm{113}}^1\times {\mathrm{15823}}^1$

素因数の和:15943

約数の個数: 24

約数和(自身を含む): 50510208

約数和(自身を除く): 29054220

約数列:

[1, 2, 3, 4, 6, 12, 113, 226, 339, 452, 678, 1356, 15823, 31646, 47469, 63292, 94938, 189876, 1787999, 3575998, 5363997, 7151996, 10727994, 21455988]

約数ペア:

[(1, 21455988), (2, 10727994), (3, 7151996), (4, 5363997), (6, 3575998), (12, 1787999), (113, 189876), (226, 94938), (339, 63292), (452, 47469), (678, 31646), (1356, 15823)]