28381605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1973}}^1$

素因数の和:2125

約数の個数: 32

約数和(自身を含む): 52303104

約数和(自身を除く): 23921499

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 1973, 2055, 2877, 4795, 5919, 9865, 13811, 14385, 29595, 41433, 69055, 207165, 270301, 810903, 1351505, 1892107, 4054515, 5676321, 9460535, 28381605]

約数ペア:

[(1, 28381605), (3, 9460535), (5, 5676321), (7, 4054515), (15, 1892107), (21, 1351505), (35, 810903), (105, 270301), (137, 207165), (411, 69055), (685, 41433), (959, 29595), (1973, 14385), (2055, 13811), (2877, 9865), (4795, 5919)]