28984221

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{937}}^1$

素因数の和:1441

約数の個数: 24

約数和(自身を含む): 47995584

約数和(自身を除く): 19011363

約数列:

[1, 3, 7, 9, 21, 63, 491, 937, 1473, 2811, 3437, 4419, 6559, 8433, 10311, 19677, 30933, 59031, 460067, 1380201, 3220469, 4140603, 9661407, 28984221]

約数ペア:

[(1, 28984221), (3, 9661407), (7, 4140603), (9, 3220469), (21, 1380201), (63, 460067), (491, 59031), (937, 30933), (1473, 19677), (2811, 10311), (3437, 8433), (4419, 6559)]