21277149

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5281}}^1$

素因数の和:5380

約数の個数: 16

約数和(自身を含む): 30424320

約数和(自身を除く): 9147171

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5281, 15843, 89777, 269331, 417199, 1251597, 7092383, 21277149]

約数ペア:

[(1, 21277149), (3, 7092383), (17, 1251597), (51, 417199), (79, 269331), (237, 89777), (1343, 15843), (4029, 5281)]