20887048

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{2207}}^1$

素因数の和:2246

約数の個数: 48

約数和(自身を含む): 48487680

約数和(自身を除く): 27600632

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 169, 182, 338, 364, 676, 728, 1183, 1352, 2207, 2366, 4414, 4732, 8828, 9464, 15449, 17656, 28691, 30898, 57382, 61796, 114764, 123592, 200837, 229528, 372983, 401674, 745966, 803348, 1491932, 1606696, 2610881, 2983864, 5221762, 10443524, 20887048]

約数ペア:

[(1, 20887048), (2, 10443524), (4, 5221762), (7, 2983864), (8, 2610881), (13, 1606696), (14, 1491932), (26, 803348), (28, 745966), (52, 401674), (56, 372983), (91, 229528), (104, 200837), (169, 123592), (182, 114764), (338, 61796), (364, 57382), (676, 30898), (728, 28691), (1183, 17656), (1352, 15449), (2207, 9464), (2366, 8828), (4414, 4732)]