20518708

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{38569}}^1$

素因数の和:38599

約数の個数: 24

約数和(自身を含む): 43198400

約数和(自身を除く): 22679692

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 38569, 77138, 154276, 269983, 539966, 732811, 1079932, 1465622, 2931244, 5129677, 10259354, 20518708]

約数ペア:

[(1, 20518708), (2, 10259354), (4, 5129677), (7, 2931244), (14, 1465622), (19, 1079932), (28, 732811), (38, 539966), (76, 269983), (133, 154276), (266, 77138), (532, 38569)]