20148219

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 36417472

約数和(自身を除く): 16269253

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 73, 91, 117, 219, 273, 337, 511, 657, 819, 949, 1011, 1533, 2359, 2847, 3033, 4381, 4599, 6643, 7077, 8541, 13143, 19929, 21231, 24601, 30667, 39429, 59787, 73803, 92001, 172207, 221409, 276003, 319813, 516621, 959439, 1549863, 2238691, 2878317, 6716073, 20148219]

約数ペア:

[(1, 20148219), (3, 6716073), (7, 2878317), (9, 2238691), (13, 1549863), (21, 959439), (39, 516621), (63, 319813), (73, 276003), (91, 221409), (117, 172207), (219, 92001), (273, 73803), (337, 59787), (511, 39429), (657, 30667), (819, 24601), (949, 21231), (1011, 19929), (1533, 13143), (2359, 8541), (2847, 7077), (3033, 6643), (4381, 4599)]