21297248

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3067}}^1$

素因数の和:3115

約数の個数: 48

約数和(自身を含む): 49480704

約数和(自身を除く): 28183456

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3067, 3472, 6134, 6944, 12268, 21469, 24536, 42938, 49072, 85876, 95077, 98144, 171752, 190154, 343504, 380308, 665539, 687008, 760616, 1331078, 1521232, 2662156, 3042464, 5324312, 10648624, 21297248]

約数ペア:

[(1, 21297248), (2, 10648624), (4, 5324312), (7, 3042464), (8, 2662156), (14, 1521232), (16, 1331078), (28, 760616), (31, 687008), (32, 665539), (56, 380308), (62, 343504), (112, 190154), (124, 171752), (217, 98144), (224, 95077), (248, 85876), (434, 49072), (496, 42938), (868, 24536), (992, 21469), (1736, 12268), (3067, 6944), (3472, 6134)]