21320035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{883}}^1$

素因数の和:1338

約数の個数: 16

約数和(自身を含む): 28005120

約数和(自身を除く): 6685085

約数列:

[1, 5, 11, 55, 439, 883, 2195, 4415, 4829, 9713, 24145, 48565, 387637, 1938185, 4264007, 21320035]

約数ペア:

[(1, 21320035), (5, 4264007), (11, 1938185), (55, 387637), (439, 48565), (883, 24145), (2195, 9713), (4415, 4829)]