19661564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12197}}^1$

素因数の和:12245

約数の個数: 24

約数和(自身を含む): 38252928

約数和(自身を除く): 18591364

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12197, 24394, 48788, 158561, 317122, 378107, 634244, 756214, 1512428, 4915391, 9830782, 19661564]

約数ペア:

[(1, 19661564), (2, 9830782), (4, 4915391), (13, 1512428), (26, 756214), (31, 634244), (52, 378107), (62, 317122), (124, 158561), (403, 48788), (806, 24394), (1612, 12197)]