21143824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101653}}^1$

素因数の和:101674

約数の個数: 20

約数和(自身を含む): 44117836

約数和(自身を除く): 22974012

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101653, 203306, 406612, 813224, 1321489, 1626448, 2642978, 5285956, 10571912, 21143824]

約数ペア:

[(1, 21143824), (2, 10571912), (4, 5285956), (8, 2642978), (13, 1626448), (16, 1321489), (26, 813224), (52, 406612), (104, 203306), (208, 101653)]