28378749

素因数分解:

$3^1\times 7^1\times {\mathrm{947}}^1\times {\mathrm{1427}}^1$

素因数の和:2384

約数の個数: 16

約数和(自身を含む): 43319808

約数和(自身を除く): 14941059

約数列:

[1, 3, 7, 21, 947, 1427, 2841, 4281, 6629, 9989, 19887, 29967, 1351369, 4054107, 9459583, 28378749]

約数ペア:

[(1, 28378749), (3, 9459583), (7, 4054107), (21, 1351369), (947, 29967), (1427, 19887), (2841, 9989), (4281, 6629)]