18979426

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{1109}}^1$

素因数の和:1353

約数の個数: 16

約数和(自身を含む): 29304000

約数和(自身を除く): 10324574

約数列:

[1, 2, 43, 86, 199, 398, 1109, 2218, 8557, 17114, 47687, 95374, 220691, 441382, 9489713, 18979426]

約数ペア:

[(1, 18979426), (2, 9489713), (43, 441382), (86, 220691), (199, 95374), (398, 47687), (1109, 17114), (2218, 8557)]