20812947

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{6091}}^1$

素因数の和:6178

約数の個数: 16

約数和(自身を含む): 29826432

約数和(自身を除く): 9013485

約数列:

[1, 3, 17, 51, 67, 201, 1139, 3417, 6091, 18273, 103547, 310641, 408097, 1224291, 6937649, 20812947]

約数ペア:

[(1, 20812947), (3, 6937649), (17, 1224291), (51, 408097), (67, 310641), (201, 103547), (1139, 18273), (3417, 6091)]