20874351

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1\times {\mathrm{727}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 29562624

約数和(自身を除く): 8688273

約数列:

[1, 3, 17, 51, 563, 727, 1689, 2181, 9571, 12359, 28713, 37077, 409301, 1227903, 6958117, 20874351]

約数ペア:

[(1, 20874351), (3, 6958117), (17, 1227903), (51, 409301), (563, 37077), (727, 28713), (1689, 12359), (2181, 9571)]