21000659397

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{647509}}^1$

素因数の和:648100

約数の個数: 16

約数和(自身を含む): 29526456000

約数和(自身を除く): 8525796603

約数列:

[1, 3, 19, 57, 569, 1707, 10811, 32433, 647509, 1942527, 12302671, 36908013, 368432621, 1105297863, 7000219799, 21000659397]

約数ペア:

[(1, 21000659397), (3, 7000219799), (19, 1105297863), (57, 368432621), (569, 36908013), (1707, 12302671), (10811, 1942527), (32433, 647509)]