20641288521

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{73}}^1\times {\mathrm{25453}}^1$

素因数の和:25582

約数の個数: 48

約数和(自身を含む): 33332114816

約数和(自身を除く): 12690826295

約数列:

[1, 3, 7, 21, 23, 69, 73, 161, 219, 483, 511, 529, 1533, 1587, 1679, 3703, 5037, 11109, 11753, 25453, 35259, 38617, 76359, 115851, 178171, 270319, 534513, 585419, 810957, 1756257, 1858069, 4097933, 5574207, 12293799, 13006483, 13464637, 39019449, 40393911, 42735587, 94252459, 128206761, 282757377, 299149109, 897447327, 982918501, 2948755503, 6880429507, 20641288521]

約数ペア:

[(1, 20641288521), (3, 6880429507), (7, 2948755503), (21, 982918501), (23, 897447327), (69, 299149109), (73, 282757377), (161, 128206761), (219, 94252459), (483, 42735587), (511, 40393911), (529, 39019449), (1533, 13464637), (1587, 13006483), (1679, 12293799), (3703, 5574207), (5037, 4097933), (11109, 1858069), (11753, 1756257), (25453, 810957), (35259, 585419), (38617, 534513), (76359, 270319), (115851, 178171)]