21000852397

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{460919}}^1$

素因数の和:461232

約数の個数: 16

約数和(自身を含む): 25133045760

約数和(自身を除く): 4132193363

約数列:

[1, 7, 23, 161, 283, 1981, 6509, 45563, 460919, 3226433, 10601137, 74207959, 130440077, 913080539, 3000121771, 21000852397]

約数ペア:

[(1, 21000852397), (7, 3000121771), (23, 913080539), (161, 130440077), (283, 74207959), (1981, 10601137), (6509, 3226433), (45563, 460919)]