20657103688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{198625997}}^1$

素因数の和:198626016

約数の個数: 16

約数和(自身を含む): 41711459580

約数和(自身を除く): 21054355892

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 198625997, 397251994, 794503988, 1589007976, 2582137961, 5164275922, 10328551844, 20657103688]

約数ペア:

[(1, 20657103688), (2, 10328551844), (4, 5164275922), (8, 2582137961), (13, 1589007976), (26, 794503988), (52, 397251994), (104, 198625997)]