20997510196

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1493}}^1\times {\mathrm{270461}}^1$

素因数の和:271971

約数の個数: 24

約数和(自身を含む): 39598882344

約数和(自身を除く): 18601372148

約数列:

[1, 2, 4, 13, 26, 52, 1493, 2986, 5972, 19409, 38818, 77636, 270461, 540922, 1081844, 3515993, 7031986, 14063972, 403798273, 807596546, 1615193092, 5249377549, 10498755098, 20997510196]

約数ペア:

[(1, 20997510196), (2, 10498755098), (4, 5249377549), (13, 1615193092), (26, 807596546), (52, 403798273), (1493, 14063972), (2986, 7031986), (5972, 3515993), (19409, 1081844), (38818, 540922), (77636, 270461)]