20423788

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9473}}^1$

素因数の和:9502

約数の個数: 36

約数和(自身を含む): 45361512

約数和(自身を除く): 24937724

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9473, 18946, 37892, 66311, 104203, 132622, 208406, 265244, 416812, 464177, 729421, 928354, 1458842, 1856708, 2917684, 5105947, 10211894, 20423788]

約数ペア:

[(1, 20423788), (2, 10211894), (4, 5105947), (7, 2917684), (11, 1856708), (14, 1458842), (22, 928354), (28, 729421), (44, 464177), (49, 416812), (77, 265244), (98, 208406), (154, 132622), (196, 104203), (308, 66311), (539, 37892), (1078, 18946), (2156, 9473)]