20643788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20399}}^1$

素因数の和:20437

約数の個数: 24

約数和(自身を含む): 41126400

約数和(自身を除く): 20482612

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20399, 40798, 81596, 224389, 448778, 469177, 897556, 938354, 1876708, 5160947, 10321894, 20643788]

約数ペア:

[(1, 20643788), (2, 10321894), (4, 5160947), (11, 1876708), (22, 938354), (23, 897556), (44, 469177), (46, 448778), (92, 224389), (253, 81596), (506, 40798), (1012, 20399)]