21000908024

素因数分解:

$2^3\times {\mathrm{1039}}^1\times {\mathrm{2526577}}^1$

素因数の和:2527622

約数の個数: 16

約数和(自身を含む): 39414616800

約数和(自身を除く): 18413708776

約数列:

[1, 2, 4, 8, 1039, 2078, 4156, 8312, 2526577, 5053154, 10106308, 20212616, 2625113503, 5250227006, 10500454012, 21000908024]

約数ペア:

[(1, 21000908024), (2, 10500454012), (4, 5250227006), (8, 2625113503), (1039, 20212616), (2078, 10106308), (4156, 5053154), (8312, 2526577)]