18106431

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3329}}^1$

素因数の和:3383

約数の個数: 24

約数和(自身を含む): 28851120

約数和(自身を除く): 10744689

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 3329, 5439, 9987, 23303, 69909, 123173, 163121, 369519, 489363, 862211, 2586633, 6035477, 18106431]

約数ペア:

[(1, 18106431), (3, 6035477), (7, 2586633), (21, 862211), (37, 489363), (49, 369519), (111, 163121), (147, 123173), (259, 69909), (777, 23303), (1813, 9987), (3329, 5439)]