21300213

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{9091}}^1$

素因数の和:9176

約数の個数: 16

約数和(自身を含む): 31421952

約数和(自身を除く): 10121739

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 9091, 27273, 100001, 300003, 645461, 1936383, 7100071, 21300213]

約数ペア:

[(1, 21300213), (3, 7100071), (11, 1936383), (33, 645461), (71, 300003), (213, 100001), (781, 27273), (2343, 9091)]