17920818

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 24657102

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 47, 54, 69, 94, 138, 141, 207, 282, 307, 414, 423, 614, 621, 846, 921, 1081, 1242, 1269, 1842, 2162, 2538, 2763, 3243, 5526, 6486, 7061, 8289, 9729, 14122, 14429, 16578, 19458, 21183, 28858, 29187, 42366, 43287, 58374, 63549, 86574, 127098, 129861, 190647, 259722, 331867, 381294, 389583, 663734, 779166, 995601, 1991202, 2986803, 5973606, 8960409, 17920818]

約数ペア:

[(1, 17920818), (2, 8960409), (3, 5973606), (6, 2986803), (9, 1991202), (18, 995601), (23, 779166), (27, 663734), (46, 389583), (47, 381294), (54, 331867), (69, 259722), (94, 190647), (138, 129861), (141, 127098), (207, 86574), (282, 63549), (307, 58374), (414, 43287), (423, 42366), (614, 29187), (621, 28858), (846, 21183), (921, 19458), (1081, 16578), (1242, 14429), (1269, 14122), (1842, 9729), (2162, 8289), (2538, 7061), (2763, 6486), (3243, 5526)]