21158931

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{11213}}^1$

素因数の和:11270

約数の個数: 16

約数和(自身を含む): 30681504

約数和(自身を除く): 9522573

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 11213, 33639, 190621, 414881, 571863, 1244643, 7052977, 21158931]

約数ペア:

[(1, 21158931), (3, 7052977), (17, 1244643), (37, 571863), (51, 414881), (111, 190621), (629, 33639), (1887, 11213)]