19918308

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 49280000

約数和(自身を除く): 29361692

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 199, 228, 398, 439, 597, 796, 878, 1194, 1317, 1756, 2388, 2634, 3781, 5268, 7562, 8341, 11343, 15124, 16682, 22686, 25023, 33364, 45372, 50046, 87361, 100092, 174722, 262083, 349444, 524166, 1048332, 1659859, 3319718, 4979577, 6639436, 9959154, 19918308]

約数ペア:

[(1, 19918308), (2, 9959154), (3, 6639436), (4, 4979577), (6, 3319718), (12, 1659859), (19, 1048332), (38, 524166), (57, 349444), (76, 262083), (114, 174722), (199, 100092), (228, 87361), (398, 50046), (439, 45372), (597, 33364), (796, 25023), (878, 22686), (1194, 16682), (1317, 15124), (1756, 11343), (2388, 8341), (2634, 7562), (3781, 5268)]