28405413

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2531}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 43449120

約数和(自身を除く): 15043707

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 1247, 2531, 3741, 7593, 11223, 22779, 73399, 108833, 220197, 326499, 660591, 979497, 3156157, 9468471, 28405413]

約数ペア:

[(1, 28405413), (3, 9468471), (9, 3156157), (29, 979497), (43, 660591), (87, 326499), (129, 220197), (261, 108833), (387, 73399), (1247, 22779), (2531, 11223), (3741, 7593)]