81513796

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223939}}^1$

素因数の和:223963

約数の個数: 24

約数和(自身を含む): 175568960

約数和(自身を除く): 94055164

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 223939, 447878, 895756, 1567573, 2911207, 3135146, 5822414, 6270292, 11644828, 20378449, 40756898, 81513796]

約数ペア:

[(1, 81513796), (2, 40756898), (4, 20378449), (7, 11644828), (13, 6270292), (14, 5822414), (26, 3135146), (28, 2911207), (52, 1567573), (91, 895756), (182, 447878), (364, 223939)]