21616048

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10313}}^1$

素因数の和:10452

約数の個数: 20

約数和(自身を含む): 42204888

約数和(自身を除く): 20588840

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10313, 20626, 41252, 82504, 165008, 1351003, 2702006, 5404012, 10808024, 21616048]

約数ペア:

[(1, 21616048), (2, 10808024), (4, 5404012), (8, 2702006), (16, 1351003), (131, 165008), (262, 82504), (524, 41252), (1048, 20626), (2096, 10313)]