215469861

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{87911}}^1$

素因数の和:87976

約数の個数: 16

約数和(自身を含む): 309450240

約数和(自身を除く): 93980379

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 87911, 263733, 1670309, 3780173, 5010927, 11340519, 71823287, 215469861]

約数ペア:

[(1, 215469861), (3, 71823287), (19, 11340519), (43, 5010927), (57, 3780173), (129, 1670309), (817, 263733), (2451, 87911)]