21154894

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{2311}}^1$

素因数の和:2535

約数の個数: 16

約数和(自身を含む): 33292800

約数和(自身を除く): 12137906

約数列:

[1, 2, 23, 46, 199, 398, 2311, 4577, 4622, 9154, 53153, 106306, 459889, 919778, 10577447, 21154894]

約数ペア:

[(1, 21154894), (2, 10577447), (23, 919778), (46, 459889), (199, 106306), (398, 53153), (2311, 9154), (4577, 4622)]