28504707

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{123397}}^1$

素因数の和:123418

約数の個数: 16

約数和(自身を含む): 47384832

約数和(自身を除く): 18880125

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 123397, 370191, 863779, 1357367, 2591337, 4072101, 9501569, 28504707]

約数ペア:

[(1, 28504707), (3, 9501569), (7, 4072101), (11, 2591337), (21, 1357367), (33, 863779), (77, 370191), (231, 123397)]