20160957579

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{25561}}^1$

素因数の和:25688

約数の個数: 48

約数和(自身を含む): 32568850944

約数和(自身を除く): 12407893365

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 483, 497, 529, 1491, 1587, 1633, 3703, 4899, 11109, 11431, 25561, 34293, 37559, 76683, 112677, 178927, 262913, 536781, 587903, 788739, 1763709, 1814831, 4115321, 5444493, 12345963, 12703817, 13521769, 38111451, 40565307, 41741113, 94652383, 125223339, 283957149, 292187791, 876563373, 960045599, 2880136797, 6720319193, 20160957579]

約数ペア:

[(1, 20160957579), (3, 6720319193), (7, 2880136797), (21, 960045599), (23, 876563373), (69, 292187791), (71, 283957149), (161, 125223339), (213, 94652383), (483, 41741113), (497, 40565307), (529, 38111451), (1491, 13521769), (1587, 12703817), (1633, 12345963), (3703, 5444493), (4899, 4115321), (11109, 1814831), (11431, 1763709), (25561, 788739), (34293, 587903), (37559, 536781), (76683, 262913), (112677, 178927)]