21143985

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10141}}^1$

素因数の和:10288

約数の個数: 16

約数和(自身を含む): 34077120

約数和(自身を除く): 12933135

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 10141, 30423, 50705, 152115, 1409599, 4228797, 7047995, 21143985]

約数ペア:

[(1, 21143985), (3, 7047995), (5, 4228797), (15, 1409599), (139, 152115), (417, 50705), (695, 30423), (2085, 10141)]