21771008

素因数分解:

$2^8\times 7^1\times {\mathrm{12149}}^1$

素因数の和:12172

約数の個数: 36

約数和(自身を含む): 49669200

約数和(自身を除く): 27898192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 12149, 24298, 48596, 85043, 97192, 170086, 194384, 340172, 388768, 680344, 777536, 1360688, 1555072, 2721376, 3110144, 5442752, 10885504, 21771008]

約数ペア:

[(1, 21771008), (2, 10885504), (4, 5442752), (7, 3110144), (8, 2721376), (14, 1555072), (16, 1360688), (28, 777536), (32, 680344), (56, 388768), (64, 340172), (112, 194384), (128, 170086), (224, 97192), (256, 85043), (448, 48596), (896, 24298), (1792, 12149)]