21180759

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14321}}^1$

素因数の和:14370

約数の個数: 16

約数和(自身を含む): 30935520

約数和(自身を除く): 9754761

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14321, 42963, 243457, 415309, 730371, 1245927, 7060253, 21180759]

約数ペア:

[(1, 21180759), (3, 7060253), (17, 1245927), (29, 730371), (51, 415309), (87, 243457), (493, 42963), (1479, 14321)]