18953841

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{421}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 25995200

約数和(自身を除く): 7041359

約数列:

[1, 3, 43, 129, 349, 421, 1047, 1263, 15007, 18103, 45021, 54309, 146929, 440787, 6317947, 18953841]

約数ペア:

[(1, 18953841), (3, 6317947), (43, 440787), (129, 146929), (349, 54309), (421, 45021), (1047, 18103), (1263, 15007)]