21085654330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{13907}}^1$

素因数の和:14143

約数の個数: 64

約数和(自身を含む): 41637214080

約数和(自身を除く): 20551559750

約数列:

[1, 2, 5, 10, 13, 26, 65, 107, 109, 130, 214, 218, 535, 545, 1070, 1090, 1391, 1417, 2782, 2834, 6955, 7085, 11663, 13907, 13910, 14170, 23326, 27814, 58315, 69535, 116630, 139070, 151619, 180791, 303238, 361582, 758095, 903955, 1488049, 1515863, 1516190, 1807910, 2976098, 3031726, 7440245, 7579315, 14880490, 15158630, 19344637, 19706219, 38689274, 39412438, 96723185, 98531095, 162197341, 193446370, 197062190, 324394682, 810986705, 1621973410, 2108565433, 4217130866, 10542827165, 21085654330]

約数ペア:

[(1, 21085654330), (2, 10542827165), (5, 4217130866), (10, 2108565433), (13, 1621973410), (26, 810986705), (65, 324394682), (107, 197062190), (109, 193446370), (130, 162197341), (214, 98531095), (218, 96723185), (535, 39412438), (545, 38689274), (1070, 19706219), (1090, 19344637), (1391, 15158630), (1417, 14880490), (2782, 7579315), (2834, 7440245), (6955, 3031726), (7085, 2976098), (11663, 1807910), (13907, 1516190), (13910, 1515863), (14170, 1488049), (23326, 903955), (27814, 758095), (58315, 361582), (69535, 303238), (116630, 180791), (139070, 151619)]