28748265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21061}}^1$

素因数の和:21089

約数の個数: 32

約数和(自身を含む): 56614656

約数和(自身を除く): 27866391

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 21061, 63183, 105305, 147427, 273793, 315915, 442281, 737135, 821379, 1368965, 1916551, 2211405, 4106895, 5749653, 9582755, 28748265]

約数ペア:

[(1, 28748265), (3, 9582755), (5, 5749653), (7, 4106895), (13, 2211405), (15, 1916551), (21, 1368965), (35, 821379), (39, 737135), (65, 442281), (91, 315915), (105, 273793), (195, 147427), (273, 105305), (455, 63183), (1365, 21061)]