20940172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6703}}^1$

素因数の和:6789

約数の個数: 24

約数和(自身を含む): 40545792

約数和(自身を除く): 19605620

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6703, 13406, 26812, 73733, 147466, 294932, 475913, 951826, 1903652, 5235043, 10470086, 20940172]

約数ペア:

[(1, 20940172), (2, 10470086), (4, 5235043), (11, 1903652), (22, 951826), (44, 475913), (71, 294932), (142, 147466), (284, 73733), (781, 26812), (1562, 13406), (3124, 6703)]