18742521

素因数分解:

$3^1\times 7^1\times {\mathrm{859}}^1\times {\mathrm{1039}}^1$

素因数の和:1908

約数の個数: 16

約数和(自身を含む): 28620800

約数和(自身を除く): 9878279

約数列:

[1, 3, 7, 21, 859, 1039, 2577, 3117, 6013, 7273, 18039, 21819, 892501, 2677503, 6247507, 18742521]

約数ペア:

[(1, 18742521), (3, 6247507), (7, 2677503), (21, 892501), (859, 21819), (1039, 18039), (2577, 7273), (3117, 6013)]