28006503

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{21863}}^1$

素因数の和:21934

約数の個数: 16

約数和(自身を含む): 43378176

約数和(自身を除く): 15371673

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 21863, 65589, 153041, 459123, 1333643, 4000929, 9335501, 28006503]

約数ペア:

[(1, 28006503), (3, 9335501), (7, 4000929), (21, 1333643), (61, 459123), (183, 153041), (427, 65589), (1281, 21863)]