28395609

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20011}}^1$

素因数の和:20068

約数の個数: 16

約数和(自身を含む): 42265344

約数和(自身を除く): 13869735

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 20011, 60033, 220121, 660363, 860473, 2581419, 9465203, 28395609]

約数ペア:

[(1, 28395609), (3, 9465203), (11, 2581419), (33, 860473), (43, 660363), (129, 220121), (473, 60033), (1419, 20011)]