21404568

素因数分解:

$2^3\times 3^1\times {\mathrm{839}}^1\times {\mathrm{1063}}^1$

素因数の和:1911

約数の個数: 32

約数和(自身を含む): 53625600

約数和(自身を除く): 32221032

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 839, 1063, 1678, 2126, 2517, 3189, 3356, 4252, 5034, 6378, 6712, 8504, 10068, 12756, 20136, 25512, 891857, 1783714, 2675571, 3567428, 5351142, 7134856, 10702284, 21404568]

約数ペア:

[(1, 21404568), (2, 10702284), (3, 7134856), (4, 5351142), (6, 3567428), (8, 2675571), (12, 1783714), (24, 891857), (839, 25512), (1063, 20136), (1678, 12756), (2126, 10068), (2517, 8504), (3189, 6712), (3356, 6378), (4252, 5034)]