21052779

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33577}}^1$

素因数の和:33610

約数の個数: 16

約数和(自身を含む): 32234880

約数和(自身を除く): 11182101

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33577, 100731, 369347, 637963, 1108041, 1913889, 7017593, 21052779]

約数ペア:

[(1, 21052779), (3, 7017593), (11, 1913889), (19, 1108041), (33, 637963), (57, 369347), (209, 100731), (627, 33577)]