19856958

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 46006272

約数和(自身を除く): 26149314

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 103, 127, 138, 206, 253, 254, 309, 381, 506, 618, 759, 762, 1133, 1397, 1518, 2266, 2369, 2794, 2921, 3399, 4191, 4738, 5842, 6798, 7107, 8382, 8763, 13081, 14214, 17526, 26059, 26162, 32131, 39243, 52118, 64262, 78177, 78486, 96393, 143891, 156354, 192786, 287782, 300863, 431673, 601726, 863346, 902589, 1805178, 3309493, 6618986, 9928479, 19856958]

約数ペア:

[(1, 19856958), (2, 9928479), (3, 6618986), (6, 3309493), (11, 1805178), (22, 902589), (23, 863346), (33, 601726), (46, 431673), (66, 300863), (69, 287782), (103, 192786), (127, 156354), (138, 143891), (206, 96393), (253, 78486), (254, 78177), (309, 64262), (381, 52118), (506, 39243), (618, 32131), (759, 26162), (762, 26059), (1133, 17526), (1397, 14214), (1518, 13081), (2266, 8763), (2369, 8382), (2794, 7107), (2921, 6798), (3399, 5842), (4191, 4738)]