20703892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21753068

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 89, 178, 187, 311, 356, 374, 622, 748, 979, 1244, 1513, 1958, 3026, 3421, 3916, 5287, 6052, 6842, 10574, 13684, 16643, 21148, 27679, 33286, 55358, 58157, 66572, 110716, 116314, 232628, 304469, 470543, 608938, 941086, 1217876, 1882172, 5175973, 10351946, 20703892]

約数ペア:

[(1, 20703892), (2, 10351946), (4, 5175973), (11, 1882172), (17, 1217876), (22, 941086), (34, 608938), (44, 470543), (68, 304469), (89, 232628), (178, 116314), (187, 110716), (311, 66572), (356, 58157), (374, 55358), (622, 33286), (748, 27679), (979, 21148), (1244, 16643), (1513, 13684), (1958, 10574), (3026, 6842), (3421, 6052), (3916, 5287)]