19966562

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{409}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 37549440

約数和(自身を除く): 17582878

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 317, 409, 634, 818, 2219, 2863, 3487, 4438, 4499, 5726, 6974, 8998, 24409, 31493, 48818, 62986, 129653, 259306, 907571, 1426183, 1815142, 2852366, 9983281, 19966562]

約数ペア:

[(1, 19966562), (2, 9983281), (7, 2852366), (11, 1815142), (14, 1426183), (22, 907571), (77, 259306), (154, 129653), (317, 62986), (409, 48818), (634, 31493), (818, 24409), (2219, 8998), (2863, 6974), (3487, 5726), (4438, 4499)]