28321629

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{22109}}^1$

素因数の和:22180

約数の個数: 16

約数和(自身を含む): 43866240

約数和(自身を除く): 15544611

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 22109, 66327, 154763, 464289, 1348649, 4045947, 9440543, 28321629]

約数ペア:

[(1, 28321629), (3, 9440543), (7, 4045947), (21, 1348649), (61, 464289), (183, 154763), (427, 66327), (1281, 22109)]