18803824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90403}}^1$

素因数の和:90424

約数の個数: 20

約数和(自身を含む): 39235336

約数和(自身を除く): 20431512

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90403, 180806, 361612, 723224, 1175239, 1446448, 2350478, 4700956, 9401912, 18803824]

約数ペア:

[(1, 18803824), (2, 9401912), (4, 4700956), (8, 2350478), (13, 1446448), (16, 1175239), (26, 723224), (52, 361612), (104, 180806), (208, 90403)]