21520184

素因数分解:

$2^3\times 7^1\times {\mathrm{384289}}^1$

素因数の和:384302

約数の個数: 16

約数和(自身を含む): 46114800

約数和(自身を除く): 24594616

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 384289, 768578, 1537156, 2690023, 3074312, 5380046, 10760092, 21520184]

約数ペア:

[(1, 21520184), (2, 10760092), (4, 5380046), (7, 3074312), (8, 2690023), (14, 1537156), (28, 768578), (56, 384289)]