21408224

素因数分解:

$2^5\times {\mathrm{139}}^1\times {\mathrm{4813}}^1$

素因数の和:4962

約数の個数: 24

約数和(自身を含む): 42459480

約数和(自身を除く): 21051256

約数列:

[1, 2, 4, 8, 16, 32, 139, 278, 556, 1112, 2224, 4448, 4813, 9626, 19252, 38504, 77008, 154016, 669007, 1338014, 2676028, 5352056, 10704112, 21408224]

約数ペア:

[(1, 21408224), (2, 10704112), (4, 5352056), (8, 2676028), (16, 1338014), (32, 669007), (139, 154016), (278, 77008), (556, 38504), (1112, 19252), (2224, 9626), (4448, 4813)]