21387968

素因数分解:

$2^6\times 7^1\times {\mathrm{47741}}^1$

素因数の和:47760

約数の個数: 28

約数和(自身を含む): 48505872

約数和(自身を除く): 27117904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 47741, 95482, 190964, 334187, 381928, 668374, 763856, 1336748, 1527712, 2673496, 3055424, 5346992, 10693984, 21387968]

約数ペア:

[(1, 21387968), (2, 10693984), (4, 5346992), (7, 3055424), (8, 2673496), (14, 1527712), (16, 1336748), (28, 763856), (32, 668374), (56, 381928), (64, 334187), (112, 190964), (224, 95482), (448, 47741)]