20871597

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{1291}}^1$

素因数の和:1628

約数の個数: 16

約数和(自身を含む): 29581632

約数和(自身を除く): 8710035

約数列:

[1, 3, 17, 51, 317, 951, 1291, 3873, 5389, 16167, 21947, 65841, 409247, 1227741, 6957199, 20871597]

約数ペア:

[(1, 20871597), (3, 6957199), (17, 1227741), (51, 409247), (317, 65841), (951, 21947), (1291, 16167), (3873, 5389)]