21912768003

素因数分解:

$3^1\times 7^3\times {\mathrm{21295207}}^1$

素因数の和:21295231

約数の個数: 16

約数和(自身を含む): 34072332800

約数和(自身を除く): 12159564797

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 21295207, 63885621, 149066449, 447199347, 1043465143, 3130395429, 7304256001, 21912768003]

約数ペア:

[(1, 21912768003), (3, 7304256001), (7, 3130395429), (21, 1043465143), (49, 447199347), (147, 149066449), (343, 63885621), (1029, 21295207)]