21194017

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{971}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 24167808

約数和(自身を除く): 2973791

約数列:

[1, 13, 23, 73, 299, 949, 971, 1679, 12623, 21827, 22333, 70883, 290329, 921479, 1630309, 21194017]

約数ペア:

[(1, 21194017), (13, 1630309), (23, 921479), (73, 290329), (299, 70883), (949, 22333), (971, 21827), (1679, 12623)]