28507017

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{123407}}^1$

素因数の和:123428

約数の個数: 16

約数和(自身を含む): 47388672

約数和(自身を除く): 18881655

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 123407, 370221, 863849, 1357477, 2591547, 4072431, 9502339, 28507017]

約数ペア:

[(1, 28507017), (3, 9502339), (7, 4072431), (11, 2591547), (21, 1357477), (33, 863849), (77, 370221), (231, 123407)]