21065216

素因数分解:

$2^9\times {\mathrm{41143}}^1$

素因数の和:41161

約数の個数: 20

約数和(自身を含む): 42090312

約数和(自身を除く): 21025096

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41143, 82286, 164572, 329144, 658288, 1316576, 2633152, 5266304, 10532608, 21065216]

約数ペア:

[(1, 21065216), (2, 10532608), (4, 5266304), (8, 2633152), (16, 1316576), (32, 658288), (64, 329144), (128, 164572), (256, 82286), (512, 41143)]