21135040

素因数分解:

$2^6\times 5^1\times {\mathrm{66047}}^1$

素因数の和:66064

約数の個数: 28

約数和(自身を含む): 50328576

約数和(自身を除く): 29193536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66047, 132094, 264188, 330235, 528376, 660470, 1056752, 1320940, 2113504, 2641880, 4227008, 5283760, 10567520, 21135040]

約数ペア:

[(1, 21135040), (2, 10567520), (4, 5283760), (5, 4227008), (8, 2641880), (10, 2113504), (16, 1320940), (20, 1056752), (32, 660470), (40, 528376), (64, 330235), (80, 264188), (160, 132094), (320, 66047)]