21696337

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{487}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 24595200

約数和(自身を除く): 2898863

約数列:

[1, 13, 23, 149, 299, 487, 1937, 3427, 6331, 11201, 44551, 72563, 145613, 943319, 1668949, 21696337]

約数ペア:

[(1, 21696337), (13, 1668949), (23, 943319), (149, 145613), (299, 72563), (487, 44551), (1937, 11201), (3427, 6331)]