20438478

素因数分解:

$2^1\times 3^2\times {\mathrm{827}}^1\times {\mathrm{1373}}^1$

素因数の和:2208

約数の個数: 24

約数和(自身を含む): 44369208

約数和(自身を除く): 23930730

約数列:

[1, 2, 3, 6, 9, 18, 827, 1373, 1654, 2481, 2746, 4119, 4962, 7443, 8238, 12357, 14886, 24714, 1135471, 2270942, 3406413, 6812826, 10219239, 20438478]

約数ペア:

[(1, 20438478), (2, 10219239), (3, 6812826), (6, 3406413), (9, 2270942), (18, 1135471), (827, 24714), (1373, 14886), (1654, 12357), (2481, 8238), (2746, 7443), (4119, 4962)]