21000836344

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{314723}}^1$

素因数の和:315187

約数の個数: 32

約数和(自身を含む): 41543568000

約数和(自身を除く): 20542731656

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 439, 878, 1756, 3512, 8341, 16682, 33364, 66728, 314723, 629446, 1258892, 2517784, 5979737, 11959474, 23918948, 47837896, 138163397, 276326794, 552653588, 1105307176, 2625104543, 5250209086, 10500418172, 21000836344]

約数ペア:

[(1, 21000836344), (2, 10500418172), (4, 5250209086), (8, 2625104543), (19, 1105307176), (38, 552653588), (76, 276326794), (152, 138163397), (439, 47837896), (878, 23918948), (1756, 11959474), (3512, 5979737), (8341, 2517784), (16682, 1258892), (33364, 629446), (66728, 314723)]