18662139

素因数分解:

$3^2\times {\mathrm{401}}^1\times {\mathrm{5171}}^1$

素因数の和:5578

約数の個数: 12

約数和(自身を含む): 27028872

約数和(自身を除く): 8366733

約数列:

[1, 3, 9, 401, 1203, 3609, 5171, 15513, 46539, 2073571, 6220713, 18662139]

約数ペア:

[(1, 18662139), (3, 6220713), (9, 2073571), (401, 46539), (1203, 15513), (3609, 5171)]