18181870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1231}}^1$

素因数の和:1456

約数の個数: 32

約数和(自身を含む): 37610496

約数和(自身を除く): 19428626

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1231, 1477, 2110, 2462, 2954, 6155, 7385, 8617, 12310, 14770, 17234, 43085, 86170, 259741, 519482, 1298705, 1818187, 2597410, 3636374, 9090935, 18181870]

約数ペア:

[(1, 18181870), (2, 9090935), (5, 3636374), (7, 2597410), (10, 1818187), (14, 1298705), (35, 519482), (70, 259741), (211, 86170), (422, 43085), (1055, 17234), (1231, 14770), (1477, 12310), (2110, 8617), (2462, 7385), (2954, 6155)]