19429808

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:993

約数の個数: 40

約数和(自身を含む): 39806976

約数和(自身を除く): 20377168

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 911, 1333, 1822, 2666, 3644, 5332, 7288, 10664, 14576, 21328, 28241, 39173, 56482, 78346, 112964, 156692, 225928, 313384, 451856, 626768, 1214363, 2428726, 4857452, 9714904, 19429808]

約数ペア:

[(1, 19429808), (2, 9714904), (4, 4857452), (8, 2428726), (16, 1214363), (31, 626768), (43, 451856), (62, 313384), (86, 225928), (124, 156692), (172, 112964), (248, 78346), (344, 56482), (496, 39173), (688, 28241), (911, 21328), (1333, 14576), (1822, 10664), (2666, 7288), (3644, 5332)]