20657703

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1601}}^1$

素因数の和:1655

約数の個数: 32

約数和(自身を含む): 33219072

約数和(自身を除く): 12561369

約数列:

[1, 3, 11, 17, 23, 33, 51, 69, 187, 253, 391, 561, 759, 1173, 1601, 4301, 4803, 12903, 17611, 27217, 36823, 52833, 81651, 110469, 299387, 405053, 625991, 898161, 1215159, 1877973, 6885901, 20657703]

約数ペア:

[(1, 20657703), (3, 6885901), (11, 1877973), (17, 1215159), (23, 898161), (33, 625991), (51, 405053), (69, 299387), (187, 110469), (253, 81651), (391, 52833), (561, 36823), (759, 27217), (1173, 17611), (1601, 12903), (4301, 4803)]