18121447

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 19692288

約数和(自身を除く): 1570841

約数列:

[1, 23, 43, 73, 251, 989, 1679, 3139, 5773, 10793, 18323, 72197, 248239, 421429, 787889, 18121447]

約数ペア:

[(1, 18121447), (23, 787889), (43, 421429), (73, 248239), (251, 72197), (989, 18323), (1679, 10793), (3139, 5773)]