18939998

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6473}}^1$

素因数の和:6512

約数の個数: 32

約数和(自身を含む): 37290240

約数和(自身を除く): 18350242

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 6473, 12946, 45311, 71203, 90622, 122987, 142406, 245974, 498421, 860909, 996842, 1352857, 1721818, 2705714, 9469999, 18939998]

約数ペア:

[(1, 18939998), (2, 9469999), (7, 2705714), (11, 1721818), (14, 1352857), (19, 996842), (22, 860909), (38, 498421), (77, 245974), (133, 142406), (154, 122987), (209, 90622), (266, 71203), (418, 45311), (1463, 12946), (2926, 6473)]