51954721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 68096000

約数和(自身を除く): 16141279

約数列:

[1, 7, 13, 19, 91, 133, 151, 199, 247, 1057, 1393, 1729, 1963, 2587, 2869, 3781, 13741, 18109, 20083, 26467, 30049, 37297, 49153, 210343, 261079, 344071, 390637, 570931, 2734459, 3996517, 7422103, 51954721]

約数ペア:

[(1, 51954721), (7, 7422103), (13, 3996517), (19, 2734459), (91, 570931), (133, 390637), (151, 344071), (199, 261079), (247, 210343), (1057, 49153), (1393, 37297), (1729, 30049), (1963, 26467), (2587, 20083), (2869, 18109), (3781, 13741)]