18523239

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 29382144

約数和(自身を除く): 10858905

約数列:

[1, 3, 7, 21, 43, 73, 129, 219, 281, 301, 511, 843, 903, 1533, 1967, 3139, 5901, 9417, 12083, 20513, 21973, 36249, 61539, 65919, 84581, 143591, 253743, 430773, 882059, 2646177, 6174413, 18523239]

約数ペア:

[(1, 18523239), (3, 6174413), (7, 2646177), (21, 882059), (43, 430773), (73, 253743), (129, 143591), (219, 84581), (281, 65919), (301, 61539), (511, 36249), (843, 21973), (903, 20513), (1533, 12083), (1967, 9417), (3139, 5901)]