28347585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{15881}}^1$

素因数の和:15913

約数の個数: 32

約数和(自身を含む): 54888192

約数和(自身を除く): 26540607

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 15881, 47643, 79405, 111167, 238215, 269977, 333501, 555835, 809931, 1349885, 1667505, 1889839, 4049655, 5669517, 9449195, 28347585]

約数ペア:

[(1, 28347585), (3, 9449195), (5, 5669517), (7, 4049655), (15, 1889839), (17, 1667505), (21, 1349885), (35, 809931), (51, 555835), (85, 333501), (105, 269977), (119, 238215), (255, 111167), (357, 79405), (595, 47643), (1785, 15881)]