18900994

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31397}}^1$

素因数の和:31449

約数の個数: 16

約数和(自身を含む): 33156288

約数和(自身を除く): 14255294

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 31397, 62794, 219779, 439558, 1350071, 2700142, 9450497, 18900994]

約数ペア:

[(1, 18900994), (2, 9450497), (7, 2700142), (14, 1350071), (43, 439558), (86, 219779), (301, 62794), (602, 31397)]