21296739

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8689}}^1$

素因数の和:8754

約数の個数: 16

約数和(自身を含む): 30588800

約数和(自身を除く): 9292061

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8689, 26067, 165091, 373627, 495273, 1120881, 7098913, 21296739]

約数ペア:

[(1, 21296739), (3, 7098913), (19, 1120881), (43, 495273), (57, 373627), (129, 165091), (817, 26067), (2451, 8689)]