20884006

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 48

約数和(自身を含む): 38184048

約数和(自身を除く): 17300042

約数列:

[1, 2, 11, 13, 22, 26, 41, 82, 137, 143, 169, 274, 286, 338, 451, 533, 902, 1066, 1507, 1781, 1859, 3014, 3562, 3718, 5617, 5863, 6929, 11234, 11726, 13858, 19591, 23153, 39182, 46306, 61787, 73021, 76219, 123574, 146042, 152438, 254683, 509366, 803231, 949273, 1606462, 1898546, 10442003, 20884006]

約数ペア:

[(1, 20884006), (2, 10442003), (11, 1898546), (13, 1606462), (22, 949273), (26, 803231), (41, 509366), (82, 254683), (137, 152438), (143, 146042), (169, 123574), (274, 76219), (286, 73021), (338, 61787), (451, 46306), (533, 39182), (902, 23153), (1066, 19591), (1507, 13858), (1781, 11726), (1859, 11234), (3014, 6929), (3562, 5863), (3718, 5617)]