20461844

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{30269}}^1$

素因数の和:30299

約数の個数: 18

約数和(自身を含む): 38775870

約数和(自身を除く): 18314026

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 30269, 60538, 121076, 393497, 786994, 1573988, 5115461, 10230922, 20461844]

約数ペア:

[(1, 20461844), (2, 10230922), (4, 5115461), (13, 1573988), (26, 786994), (52, 393497), (169, 121076), (338, 60538), (676, 30269)]