21593978

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90731}}^1$

素因数の和:90757

約数の個数: 16

約数和(自身を含む): 39196224

約数和(自身を除く): 17602246

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90731, 181462, 635117, 1270234, 1542427, 3084854, 10796989, 21593978]

約数ペア:

[(1, 21593978), (2, 10796989), (7, 3084854), (14, 1542427), (17, 1270234), (34, 635117), (119, 181462), (238, 90731)]