21177795

素因数分解:

$3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{8161}}^1$

素因数の和:8342

約数の個数: 16

約数和(自身を含む): 34084512

約数和(自身を除く): 12906717

約数列:

[1, 3, 5, 15, 173, 519, 865, 2595, 8161, 24483, 40805, 122415, 1411853, 4235559, 7059265, 21177795]

約数ペア:

[(1, 21177795), (3, 7059265), (5, 4235559), (15, 1411853), (173, 122415), (519, 40805), (865, 24483), (2595, 8161)]