21183316

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68777}}^1$

素因数の和:68799

約数の個数: 24

約数和(自身を含む): 46218816

約数和(自身を除く): 25035500

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68777, 137554, 275108, 481439, 756547, 962878, 1513094, 1925756, 3026188, 5295829, 10591658, 21183316]

約数ペア:

[(1, 21183316), (2, 10591658), (4, 5295829), (7, 3026188), (11, 1925756), (14, 1513094), (22, 962878), (28, 756547), (44, 481439), (77, 275108), (154, 137554), (308, 68777)]