21907444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7949}}^1$

素因数の和:8019

約数の個数: 24

約数和(自身を含む): 42071400

約数和(自身を除く): 20163956

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7949, 15898, 31796, 103337, 206674, 413348, 421297, 842594, 1685188, 5476861, 10953722, 21907444]

約数ペア:

[(1, 21907444), (2, 10953722), (4, 5476861), (13, 1685188), (26, 842594), (52, 421297), (53, 413348), (106, 206674), (212, 103337), (689, 31796), (1378, 15898), (2756, 7949)]