420041889

素因数分解:

$3^3\times {\mathrm{757}}^1\times {\mathrm{20551}}^1$

素因数の和:21317

約数の個数: 16

約数和(自身を含む): 623136640

約数和(自身を除く): 203094751

約数列:

[1, 3, 9, 27, 757, 2271, 6813, 20439, 20551, 61653, 184959, 554877, 15557107, 46671321, 140013963, 420041889]

約数ペア:

[(1, 420041889), (3, 140013963), (9, 46671321), (27, 15557107), (757, 554877), (2271, 184959), (6813, 61653), (20439, 20551)]