20890616

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{9929}}^1$

素因数の和:10198

約数の個数: 16

約数和(自身を含む): 39322800

約数和(自身を除く): 18432184

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 9929, 19858, 39716, 79432, 2611327, 5222654, 10445308, 20890616]

約数ペア:

[(1, 20890616), (2, 10445308), (4, 5222654), (8, 2611327), (263, 79432), (526, 39716), (1052, 19858), (2104, 9929)]