21000309534

素因数分解:

$2^1\times 3^3\times {\mathrm{388894621}}^1$

素因数の和:388894632

約数の個数: 16

約数和(自身を含む): 46667354640

約数和(自身を除く): 25667045106

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 388894621, 777789242, 1166683863, 2333367726, 3500051589, 7000103178, 10500154767, 21000309534]

約数ペア:

[(1, 21000309534), (2, 10500154767), (3, 7000103178), (6, 3500051589), (9, 2333367726), (18, 1166683863), (27, 777789242), (54, 388894621)]