20199787461

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1\times {\mathrm{11159}}^1$

素因数の和:11718

約数の個数: 48

約数和(自身を含む): 33983539200

約数和(自身を除く): 13783751739

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 487, 531, 1239, 1461, 3409, 3717, 4383, 10227, 11159, 28733, 30681, 33477, 78113, 86199, 100431, 201131, 234339, 258597, 603393, 658381, 703017, 1810179, 1975143, 4608667, 5434433, 5925429, 13826001, 16303299, 38041031, 41478003, 48909897, 114123093, 320631547, 342369279, 961894641, 2244420829, 2885683923, 6733262487, 20199787461]

約数ペア:

[(1, 20199787461), (3, 6733262487), (7, 2885683923), (9, 2244420829), (21, 961894641), (59, 342369279), (63, 320631547), (177, 114123093), (413, 48909897), (487, 41478003), (531, 38041031), (1239, 16303299), (1461, 13826001), (3409, 5925429), (3717, 5434433), (4383, 4608667), (10227, 1975143), (11159, 1810179), (28733, 703017), (30681, 658381), (33477, 603393), (78113, 258597), (86199, 234339), (100431, 201131)]