21181143

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1637}}^1$

素因数の和:1886

約数の個数: 16

約数和(自身を含む): 29877120

約数和(自身を除く): 8695977

約数列:

[1, 3, 19, 57, 227, 681, 1637, 4313, 4911, 12939, 31103, 93309, 371599, 1114797, 7060381, 21181143]

約数ペア:

[(1, 21181143), (3, 7060381), (19, 1114797), (57, 371599), (227, 93309), (681, 31103), (1637, 12939), (4313, 4911)]