19589612

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1123}}^1$

素因数の和:1230

約数の個数: 36

約数和(自身を含む): 40362840

約数和(自身を除く): 20773228

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1123, 1246, 2246, 2492, 4361, 4492, 7861, 8722, 15722, 17444, 31444, 55027, 99947, 110054, 199894, 220108, 399788, 699629, 1399258, 2798516, 4897403, 9794806, 19589612]

約数ペア:

[(1, 19589612), (2, 9794806), (4, 4897403), (7, 2798516), (14, 1399258), (28, 699629), (49, 399788), (89, 220108), (98, 199894), (178, 110054), (196, 99947), (356, 55027), (623, 31444), (1123, 17444), (1246, 15722), (2246, 8722), (2492, 7861), (4361, 4492)]