20512019944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197230961}}^1$

素因数の和:197230980

約数の個数: 16

約数和(自身を含む): 41418502020

約数和(自身を除く): 20906482076

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197230961, 394461922, 788923844, 1577847688, 2564002493, 5128004986, 10256009972, 20512019944]

約数ペア:

[(1, 20512019944), (2, 10256009972), (4, 5128004986), (8, 2564002493), (13, 1577847688), (26, 788923844), (52, 394461922), (104, 197230961)]