21184943

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{431}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 3007057

約数列:

[1, 13, 19, 199, 247, 431, 2587, 3781, 5603, 8189, 49153, 85769, 106457, 1114997, 1629611, 21184943]

約数ペア:

[(1, 21184943), (13, 1629611), (19, 1114997), (199, 106457), (247, 85769), (431, 49153), (2587, 8189), (3781, 5603)]