20982538

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{907}}^1$

素因数の和:1221

約数の個数: 16

約数和(自身を含む): 32361120

約数和(自身を除く): 11378582

約数列:

[1, 2, 43, 86, 269, 538, 907, 1814, 11567, 23134, 39001, 78002, 243983, 487966, 10491269, 20982538]

約数ペア:

[(1, 20982538), (2, 10491269), (43, 487966), (86, 243983), (269, 78002), (538, 39001), (907, 23134), (1814, 11567)]