20393727

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4493}}^1$

素因数の和:4602

約数の個数: 16

約数和(自身を含む): 29121120

約数和(自身を除く): 8727393

約数列:

[1, 3, 17, 51, 89, 267, 1513, 4493, 4539, 13479, 76381, 229143, 399877, 1199631, 6797909, 20393727]

約数ペア:

[(1, 20393727), (3, 6797909), (17, 1199631), (51, 399877), (89, 229143), (267, 76381), (1513, 13479), (4493, 4539)]