26987823

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 17041617

約数列:

[1, 3, 9, 17, 27, 47, 51, 81, 139, 141, 153, 243, 417, 423, 459, 799, 1251, 1269, 1377, 2363, 2397, 3753, 3807, 4131, 6533, 7089, 7191, 11259, 11421, 19599, 21267, 21573, 33777, 58797, 63801, 64719, 111061, 176391, 191403, 194157, 333183, 529173, 574209, 999549, 1587519, 2998647, 8995941, 26987823]

約数ペア:

[(1, 26987823), (3, 8995941), (9, 2998647), (17, 1587519), (27, 999549), (47, 574209), (51, 529173), (81, 333183), (139, 194157), (141, 191403), (153, 176391), (243, 111061), (417, 64719), (423, 63801), (459, 58797), (799, 33777), (1251, 21573), (1269, 21267), (1377, 19599), (2363, 11421), (2397, 11259), (3753, 7191), (3807, 7089), (4131, 6533)]