19664018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12589}}^1$

素因数の和:12673

約数の個数: 16

約数和(自身を含む): 32633280

約数和(自身を除く): 12969262

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12589, 25178, 138479, 276958, 893819, 1787638, 9832009, 19664018]

約数ペア:

[(1, 19664018), (2, 9832009), (11, 1787638), (22, 893819), (71, 276958), (142, 138479), (781, 25178), (1562, 12589)]