20873797

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 24619392

約数和(自身を除く): 3745595

約数列:

[1, 7, 41, 257, 283, 287, 1799, 1981, 10537, 11603, 72731, 73759, 81221, 509117, 2981971, 20873797]

約数ペア:

[(1, 20873797), (7, 2981971), (41, 509117), (257, 81221), (283, 73759), (287, 72731), (1799, 11603), (1981, 10537)]