28681359

素因数分解:

$3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3511}}^1$

素因数の和:3910

約数の個数: 16

約数和(自身を含む): 43829760

約数和(自身を除く): 15148401

約数列:

[1, 3, 7, 21, 389, 1167, 2723, 3511, 8169, 10533, 24577, 73731, 1365779, 4097337, 9560453, 28681359]

約数ペア:

[(1, 28681359), (3, 9560453), (7, 4097337), (21, 1365779), (389, 73731), (1167, 24577), (2723, 10533), (3511, 8169)]