21221048

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37361}}^1$

素因数の和:37438

約数の個数: 16

約数和(自身を含む): 40350960

約数和(自身を除く): 19129912

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37361, 74722, 149444, 298888, 2652631, 5305262, 10610524, 21221048]

約数ペア:

[(1, 21221048), (2, 10610524), (4, 5305262), (8, 2652631), (71, 298888), (142, 149444), (284, 74722), (568, 37361)]