19866854

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5479}}^1$

素因数の和:5532

約数の個数: 24

約数和(自身を含む): 35609040

約数和(自身を除く): 15742186

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3626, 5479, 10958, 38353, 76706, 202723, 268471, 405446, 536942, 1419061, 2838122, 9933427, 19866854]

約数ペア:

[(1, 19866854), (2, 9933427), (7, 2838122), (14, 1419061), (37, 536942), (49, 405446), (74, 268471), (98, 202723), (259, 76706), (518, 38353), (1813, 10958), (3626, 5479)]