18806721

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{1607}}^1$

素因数の和:1740

約数の個数: 16

約数和(自身を含む): 25933824

約数和(自身を除く): 7127103

約数列:

[1, 3, 47, 83, 141, 249, 1607, 3901, 4821, 11703, 75529, 133381, 226587, 400143, 6268907, 18806721]

約数ペア:

[(1, 18806721), (3, 6268907), (47, 400143), (83, 226587), (141, 133381), (249, 75529), (1607, 11703), (3901, 4821)]