18908848

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{857}}^1$

素因数の和:1069

約数の個数: 40

約数和(自身を含む): 42131232

約数和(自身を除く): 23222384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 394, 788, 857, 1379, 1576, 1714, 2758, 3152, 3428, 5516, 5999, 6856, 11032, 11998, 13712, 22064, 23996, 47992, 95984, 168829, 337658, 675316, 1181803, 1350632, 2363606, 2701264, 4727212, 9454424, 18908848]

約数ペア:

[(1, 18908848), (2, 9454424), (4, 4727212), (7, 2701264), (8, 2363606), (14, 1350632), (16, 1181803), (28, 675316), (56, 337658), (112, 168829), (197, 95984), (394, 47992), (788, 23996), (857, 22064), (1379, 13712), (1576, 11998), (1714, 11032), (2758, 6856), (3152, 5999), (3428, 5516)]