21051287

素因数分解:

${\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:358

約数の個数: 16

約数和(自身を含む): 22954752

約数和(自身を除く): 1903465

約数列:

[1, 17, 71, 107, 163, 1207, 1819, 2771, 7597, 11573, 17441, 129149, 196741, 296497, 1238311, 21051287]

約数ペア:

[(1, 21051287), (17, 1238311), (71, 296497), (107, 196741), (163, 129149), (1207, 17441), (1819, 11573), (2771, 7597)]