28751241

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1\times {\mathrm{457}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 39116864

約数和(自身を除く): 10365623

約数列:

[1, 3, 67, 201, 313, 457, 939, 1371, 20971, 30619, 62913, 91857, 143041, 429123, 9583747, 28751241]

約数ペア:

[(1, 28751241), (3, 9583747), (67, 429123), (201, 143041), (313, 91857), (457, 62913), (939, 30619), (1371, 20971)]