20173192

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 42031440

約数和(自身を除く): 21858248

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 169, 172, 338, 344, 347, 559, 676, 694, 1118, 1352, 1388, 2236, 2776, 4472, 4511, 7267, 9022, 14534, 14921, 18044, 29068, 29842, 36088, 58136, 58643, 59684, 117286, 119368, 193973, 234572, 387946, 469144, 775892, 1551784, 2521649, 5043298, 10086596, 20173192]

約数ペア:

[(1, 20173192), (2, 10086596), (4, 5043298), (8, 2521649), (13, 1551784), (26, 775892), (43, 469144), (52, 387946), (86, 234572), (104, 193973), (169, 119368), (172, 117286), (338, 59684), (344, 58643), (347, 58136), (559, 36088), (676, 29842), (694, 29068), (1118, 18044), (1352, 14921), (1388, 14534), (2236, 9022), (2776, 7267), (4472, 4511)]