19100816

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{857}}^1$

素因数の和:1071

約数の個数: 40

約数和(自身を含む): 42556800

約数和(自身を除く): 23455984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 857, 1393, 1592, 1714, 2786, 3184, 3428, 5572, 5999, 6856, 11144, 11998, 13712, 22288, 23996, 47992, 95984, 170543, 341086, 682172, 1193801, 1364344, 2387602, 2728688, 4775204, 9550408, 19100816]

約数ペア:

[(1, 19100816), (2, 9550408), (4, 4775204), (7, 2728688), (8, 2387602), (14, 1364344), (16, 1193801), (28, 682172), (56, 341086), (112, 170543), (199, 95984), (398, 47992), (796, 23996), (857, 22288), (1393, 13712), (1592, 11998), (1714, 11144), (2786, 6856), (3184, 5999), (3428, 5572)]