18618117

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12487}}^1$

素因数の和:12568

約数の個数: 16

約数和(自身を含む): 28772352

約数和(自身を除く): 10154235

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12487, 37461, 87409, 262227, 886577, 2659731, 6206039, 18618117]

約数ペア:

[(1, 18618117), (3, 6206039), (7, 2659731), (21, 886577), (71, 262227), (213, 87409), (497, 37461), (1491, 12487)]