20784526

素因数分解:

$2^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2383}}^1$

素因数の和:2488

約数の個数: 24

約数和(自身を含む): 36689760

約数和(自身を除く): 15905234

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 623, 1246, 2383, 4361, 4766, 8722, 16681, 33362, 116767, 212087, 233534, 424174, 1484609, 2969218, 10392263, 20784526]

約数ペア:

[(1, 20784526), (2, 10392263), (7, 2969218), (14, 1484609), (49, 424174), (89, 233534), (98, 212087), (178, 116767), (623, 33362), (1246, 16681), (2383, 8722), (4361, 4766)]