21756039

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{6367}}^1$

素因数の和:6454

約数の個数: 16

約数和(自身を含む): 31177728

約数和(自身を除く): 9421689

約数列:

[1, 3, 17, 51, 67, 201, 1139, 3417, 6367, 19101, 108239, 324717, 426589, 1279767, 7252013, 21756039]

約数ペア:

[(1, 21756039), (3, 7252013), (17, 1279767), (51, 426589), (67, 324717), (201, 108239), (1139, 19101), (3417, 6367)]