40420989

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{347}}^1$

素因数の和:446

約数の個数: 36

約数和(自身を含む): 68511456

約数和(自身を除く): 28090467

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 347, 387, 903, 1041, 1849, 2429, 2709, 3123, 5547, 7287, 12943, 14921, 16641, 21861, 38829, 44763, 104447, 116487, 134289, 313341, 641603, 940023, 1924809, 4491221, 5774427, 13473663, 40420989]

約数ペア:

[(1, 40420989), (3, 13473663), (7, 5774427), (9, 4491221), (21, 1924809), (43, 940023), (63, 641603), (129, 313341), (301, 134289), (347, 116487), (387, 104447), (903, 44763), (1041, 38829), (1849, 21861), (2429, 16641), (2709, 14921), (3123, 12943), (5547, 7287)]