18990686

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2887}}^1$

素因数の和:2936

約数の個数: 32

約数和(自身を含む): 34933248

約数和(自身を除く): 15942562

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 143, 253, 286, 299, 506, 598, 2887, 3289, 5774, 6578, 31757, 37531, 63514, 66401, 75062, 132802, 412841, 730411, 825682, 863213, 1460822, 1726426, 9495343, 18990686]

約数ペア:

[(1, 18990686), (2, 9495343), (11, 1726426), (13, 1460822), (22, 863213), (23, 825682), (26, 730411), (46, 412841), (143, 132802), (253, 75062), (286, 66401), (299, 63514), (506, 37531), (598, 31757), (2887, 6578), (3289, 5774)]