21000368628

素因数分解:

$2^2\times 3^2\times {\mathrm{1063}}^1\times {\mathrm{548771}}^1$

素因数の和:549844

約数の個数: 36

約数和(自身を含む): 53134300128

約数和(自身を除く): 32133931500

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 1063, 2126, 3189, 4252, 6378, 9567, 12756, 19134, 38268, 548771, 1097542, 1646313, 2195084, 3292626, 4938939, 6585252, 9877878, 19755756, 583343573, 1166687146, 1750030719, 2333374292, 3500061438, 5250092157, 7000122876, 10500184314, 21000368628]

約数ペア:

[(1, 21000368628), (2, 10500184314), (3, 7000122876), (4, 5250092157), (6, 3500061438), (9, 2333374292), (12, 1750030719), (18, 1166687146), (36, 583343573), (1063, 19755756), (2126, 9877878), (3189, 6585252), (4252, 4938939), (6378, 3292626), (9567, 2195084), (12756, 1646313), (19134, 1097542), (38268, 548771)]