21000751960

素因数分解:

$2^3\times 5^1\times {\mathrm{525018799}}^1$

素因数の和:525018810

約数の個数: 16

約数和(自身を含む): 47251692000

約数和(自身を除く): 26250940040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 525018799, 1050037598, 2100075196, 2625093995, 4200150392, 5250187990, 10500375980, 21000751960]

約数ペア:

[(1, 21000751960), (2, 10500375980), (4, 5250187990), (5, 4200150392), (8, 2625093995), (10, 2100075196), (20, 1050037598), (40, 525018799)]