21060117

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{180001}}^1$

素因数の和:180020

約数の個数: 12

約数和(自身を含む): 32760364

約数和(自身を除く): 11700247

約数列:

[1, 3, 9, 13, 39, 117, 180001, 540003, 1620009, 2340013, 7020039, 21060117]

約数ペア:

[(1, 21060117), (3, 7020039), (9, 2340013), (13, 1620009), (39, 540003), (117, 180001)]