21711947905

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{17509}}^1$

素因数の和:17841

約数の個数: 32

約数和(自身を含む): 27957726720

約数和(自身を除く): 6245778815

約数列:

[1, 5, 23, 41, 115, 205, 263, 943, 1315, 4715, 6049, 10783, 17509, 30245, 53915, 87545, 248009, 402707, 717869, 1240045, 2013535, 3589345, 4604867, 16510987, 23024335, 82554935, 105911941, 188799547, 529559705, 943997735, 4342389581, 21711947905]

約数ペア:

[(1, 21711947905), (5, 4342389581), (23, 943997735), (41, 529559705), (115, 188799547), (205, 105911941), (263, 82554935), (943, 23024335), (1315, 16510987), (4715, 4604867), (6049, 3589345), (10783, 2013535), (17509, 1240045), (30245, 717869), (53915, 402707), (87545, 248009)]